CN102056185A - Channel blind detection method, channel assignment method and device - Google Patents

Abstract

The embodiment of the invention provides a channel blind detection method, a channel assignment method, user equipment (UE) and a communication device. When the UE has the receiving capability or transmitting capability of at least two component carriers, the method comprises the following steps of: acquiring the physical downlink control channel (PDCCH) searching space related information of the UE from a network side, wherein the searching space related information belongs to one of at least two searching spaces of different sizes; determining one PDCCH searching space of the UE according to the acquired PDCCH searching space related information of the UE; and performing blind detection according to the determined PDCCH searching space of the UE. According to the technical scheme provided by the embodiment of the invention, the UE is informed of the scheduling information of a plurality of cells for the UE in a main cell, so that the utilization efficiency of the radio resource of a system is improved; and the UE can detect the control channel from the main cell only, so that the detection time and the detection efficiency of control signaling are saved. Through implementation, the blind detection of the UE is realized in a carrier aggregation scene.

Description

Channel blind detecting method, distribution method and device

Technical field

The present invention relates to communication technical field, particularly a kind of channel blind detecting method, method for channel allocation and device.

Background technology

In wireless communication system, the data channel of subscriber equipment, comprise PDSCH (Physical Downlink SharedChannel, Physical Downlink Shared Channel) and PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel), need to pass through the scheduling assignment signaling subscriber equipment of system.This scheduling assignment signaling is to carry by PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel).In LTE (Long TermEvolution, Long Term Evolution) system, the running time-frequency resource of distributing to PDCCH is divided into a plurality of CCE (Control ChannelElement, control channel unit), and CCE is a minimum unit of forming PDCCH.PDCCH has 4 kinds of polymerization ranks, is respectively to take 1,2,4 and 8 CCE, and according to the channel quality status of subscriber equipment, the PDCCH of defeated this subscriber equipment of suitable polymer grade supplementary biography selects in system.And the PDCCH of subscriber equipment shares in each time transmission unit, subscriber equipment utilizes self specific scrambler that the possibility of any transformat of PDCCH is carried out blind Detecting in set search volume, the possibility of transformat comprises possible PDCCH message length, polymerization rank and the position of the CCE that takies.

For reducing subscriber equipment carries out blind Detecting in the PDCCH zone number of times, defined the transmission mode (Transmission Mode) that adopts in subscriber equipment a period of time, transmission mode can be determined the DCI form that subscriber equipment uses, and has planned the search volume.The search volume is the one section running time-frequency resource in logic that defines according to CCE, and subscriber equipment receives PDCCH and carries out blind Detecting in this search volume.The search volume of each polymerization rank L correspondence refers to the CCE of polymerization rank L correspondence.PDCCH candidate number is

The PDCCH blind Detecting number of times of each polymerization rank L correspondence $B^{\left(L\right)}=\underset{j=1}{\overset{D}{\mathrm{\Σ}}}{M}_j^{\left(L\right)},$ D is the number of different DCI (Downlink ControlInformation, Downlink Control Information).The DCI of different-format is different, and same format represents that the DCI of the control information of different carrier also is different.Here the search volume of having supposed the control channel of the different DCI correspondence that load size (Payload size) is identical be do not have fully overlapping.If the search volume of the control channel of the DCI correspondence that load size is identical is overlapping fully, in the then above-mentioned formula, D is the number of the DCI of different load size, and the blind Detecting of the control channel of a plurality of DCI correspondences that the load size is identical is only calculated once.Total blind Detecting number of times B is the blind Detecting number of times B of each polymerization rank L ^(L)Summation, promptly $B=\underset{L}{\mathrm{\Σ}}{B}^{\left(L\right)}=\underset{L}{\mathrm{\Σ}}\underset{j=1}{\overset{D}{\mathrm{\Σ}}}{M}_j^{\left(L\right)}.$ Existing LTE agreement, the number of D are for any polymerization rank, and the number of D all is identical.

When subscriber equipment of system call, the PDCCH that uses it for scheduling is carried on certain CCE polymerization rank in this user equipment searches space and launches.Subscriber equipment need receive and blind Detecting in the search volume that may transmit PDCCH, up to subscriber equipment the signaling data that detects is passed through CRC check, illustrates that detected PDCCH is that system sends to subscriber equipment.

At LTE-A (Long Term Evolution-Advanced, senior Long Term Evolution) in the system, carrier aggregation (CarrierAggregation) technology is selected to support wideer bandwidth, with satisfy International Telecommunications Union for the 4th generation the communication technology the peak data rate requirement.Carrier aggregation technology also can be called spectrum aggregating (Spectrum Aggregation) technology sometimes, perhaps bandwidth expansion (Bandwidth Extension) technology.In carrier aggregation, the frequency spectrum of two above member carriers (Component Carrier) is grouped together in together to obtain wideer transmission bandwidth.Plural member carrier can be dispatched simultaneously to a LTE-A subscriber equipment and use, and is used to transmit the upstream or downstream business of this LTE-A subscriber equipment.The downlink member carrier of carrying PDCCH abbreviates the PDCCH member carrier as; The downlink member carrier of carrying PDSCH abbreviates the PDSCH member carrier as; The uplink member carrier of carrying PUSCH abbreviates the PUSCH member carrier as.The set that a plurality of PDCCH member carriers are formed is referred to as PDCCH CC set (PDCCH Component Carrier Set, PDCCH member carrier collection).The set that a plurality of PDSCH member carriers are formed is referred to as PDSCH CC set (PDSCH Component CarrierSet, PDSCH member carrier collection).The set that a plurality of PUSCH member carriers are formed is referred to as PUSCH CC set (PUSCH Component Carrrier Set, PUSCH member carrier collection).

In the LTE-A system, if the ability of subscriber equipment can be supported the reception of N PDSCH member carrier and/or the transmission of N PUSCH member carrier, the PDCCH blind Detecting ability of the subscriber equipment support maximum PDCCH blind Detecting number of times that can reach is B so _MAX, $B_{\mathrm{MAX}}=\underset{i=1}{\overset{N}{\mathrm{\Σ}}}B\left(i\right),$ Wherein B (i) is the PDCCH blind Detecting number of times of i search volume of this user's support, $B\left(i\right)=\underset{L}{\mathrm{\Σ}}{B}^{\left(L\right)}\left(i\right),$ B ^(L)(i) be the PDCCH blind Detecting number of times of search volume i in polymerization rank L correspondence.In the LTE-A system, factors such as the polymerizing power of network based each subscriber equipment and service transmission rate demand, can or dispose the carrier wave that it need detect for user equipment allocation, and network during this period of time also only may be on these carrier waves the up-downgoing business of scheduling user's set, the search volume that subscriber equipment need detect these carrier wave correspondences gets final product.Because a plurality of PDSCH carrier waves are arranged, the user may have one or more PDCCH search volume, and the number of supposing user's search volume is K, wherein K≤N.Subscriber equipment needs K the search volume of detected transmission PDCCH.Therefore need determine the PDCCH blind Detecting number of times or the PDCCH candidate number of each search volume in K search volume, realize the blind Detecting of subscriber equipment under the carrier aggregation scene.

Summary of the invention

The embodiment of the invention provides a kind of channel blind detecting method and device, to realize the blind Detecting of subscriber equipment under the carrier aggregation scene.

The embodiment of the invention provides a kind of channel blind detecting method embodiment to be achieved through the following technical solutions:

At the subscriber equipment of receiving ability with at least two member carriers or transmitting capacity, obtain the PDCCH search volume relevant information of described subscriber equipment from network side, this search volume relevant information belongs to one of search volumes of at least two different sizes; According to the PDCCH search volume relevant information of the described described subscriber equipment that obtains, determine a PDCCH search volume of described subscriber equipment; Blind Detecting is carried out in a PDCCH search volume according to described definite described subscriber equipment.

The embodiment of the invention provides another distribution method embodiment to be achieved through the following technical solutions:

At the subscriber equipment of receiving ability with at least two member carriers or transmitting capacity, determine the search volume relevant information of described subscriber equipment, one of search volume of at least two different sizes of this information indication; Notify the search volume relevant information of the definite described subscriber equipment of described subscriber equipment; According to the search volume relevant information of described subscriber equipment, determine a search volume of described subscriber equipment; According to described at least one search volume of determining described subscriber equipment, distribute the PDCCH of described subscriber equipment.

The embodiment of the invention provides a kind of subscriber equipment embodiment to be achieved through the following technical solutions:

Described subscriber equipment has the receiving ability or the transmitting capacity of at least two member carriers, comprise: acquiring unit, be used to obtain the PDCCH search volume relevant information of described subscriber equipment, one of search volume of at least two different sizes of PDCCH search volume relevant information indication of described subscriber equipment; Processing unit one is used for PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) the search volume relevant information of the described subscriber equipment that obtains according to acquiring unit, determines a PDCCH search volume of described subscriber equipment; Detecting unit, blind Detecting is carried out in a search volume that is used for the described subscriber equipment determined according to processing unit one.

The embodiment of the invention provides a kind of communicator embodiment to be achieved through the following technical solutions:

Be used for and have the receiving ability of at least two member carriers or the subscriber equipment of transmitting capacity communicates, comprise: processing unit two, be used for determining the search volume relevant information of described subscriber equipment, the PDCCH search volume relevant information of described subscriber equipment is indicated one of search volumes of at least two different sizes, also is used for determining according to the search volume relevant information of described subscriber equipment the search volume of described subscriber equipment; Transmitting element is used for the search volume relevant information of the described subscriber equipment notifier processes unit two determined; Allocation units are used for the search volume according to described definite described subscriber equipment, distribute the PDCCH of described subscriber equipment.

In enforcement of the present invention, determine the PDCCH search volume relevant information of subscriber equipment, thereby determine a search volume of subscriber equipment, realize the blind Detecting of subscriber equipment under the carrier aggregation scene.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

A kind of channel blind detecting method schematic flow sheet that Fig. 1 embodiment of the invention provides;

A kind of channel blind detecting method schematic flow sheet that Fig. 2 embodiment of the invention provides;

A kind of channel blind detecting method schematic flow sheet that Fig. 3 provides for inventive embodiments;

A kind of method for channel allocation schematic flow sheet that Fig. 4 provides for inventive embodiments;

A kind of method for channel allocation schematic flow sheet that Fig. 5 provides for inventive embodiments;

A kind of channel blind detecting method schematic flow sheet that Fig. 6 provides for inventive embodiments;

The structural representation of the subscriber equipment that Fig. 7 provides for the invention process;

The structure schematic diagram of the communicator that Fig. 8 provides for the embodiment of the invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.

For each subscriber equipment, it supports a plurality of control channel PDCCH of multi-carrier polymerizing correspondence to determine transmission location according to factors such as concrete application scenarios demand or NLBs, descending/uplink data channels (PDSCH/PUSCH) that concrete network can be configured to control channel PDCCH and its scheduling transmits on the member carrier of identical/correspondence, or the data channel (PDSCH/PUSCH) of control channel PDCCH and its scheduling separates, easy in order to narrate, be referred to as two kinds of methods that the control channel transmission location distributes and shines upon, be respectively PDCCH1a and PDCCH1b, PDCCH1a be the PDCCH of PDSCH correspondence of certain carrier wave also on this carrier wave, PDCCH1b is that the PDCCH of the PDSCH correspondence of certain carrier wave may be carried in the PDCCH carrier set on other carrier wave.

The number of supposing the search volume of subscriber equipment is K, and the search volume of subscriber equipment comprises this K search volume, and K is the integer more than or equal to 1.Can carry the control channel of one or more DCI correspondence of subscriber equipment on each search volume of subscriber equipment, one or more candidate PDCCH correspondence of one or more DCI correspondence a search volume in other words.We can also define the search volume that the set of certain other candidate's control channel of CCE polymer grade of one or more DCI correspondence is formed, (for example for example can define certain CCE polymerization rank, form by 1 CCE), the perhaps search volume formed of the set of other candidate's control channel of all polymer grades.。When saying a search volume, can be the search volume that the set of certain other candidate's control channel of CCE polymer grade of one or more DCI correspondence is formed, also can be the search volume that the set of other candidate's control channel of all polymer grades is formed.In LTE-A, if ability according to subscriber equipment, this subscriber equipment can be supported the reception of N PDSCH member carrier and/or the transmission of N PUSCH member carrier, factors such as the polymerizing power of network based this subscriber equipment and service transmission rate demand, for user equipment allocation or configuration PDSCH CCset comprise M member carrier, wherein M≤N; It is U carrier wave that network is given the PDCCH CC set of user device configuration, under PDCCH 1a scene, for a subscriber equipment, each PDCCH CC is to there being a search volume, the number K of the search volume of subscriber equipment equals PDCCH carrier wave number U so, also equal PDSCH carrier wave number M, K≤N.Subscriber equipment only needs K the search volume of detected transmission PDCCH.When the PDSCH of PDCCH and PDCCH scheduling transmits on identical member carrier, when perhaps transmitting on the paired member carrier of the PUSCH correspondence of PDCCH and PDCCH scheduling, just PDSCH CC set is identical with PDCCH CC set, just M=U.When at all PDCCH of this LTE-A subscriber equipment of transmission on one or several member carrier during with the PDSCH that is used for dispatching this LTE-A subscriber equipment and on the member carrier of the upstream or downstream of all scheduling, transmits or PUSCH, just the data channel of control channel and its scheduling separates, PDSCH CC set and PDCCH CC set are incomplete same, relatively be typically, PDCCH CC set is the subclass of PDSCH CC set, just U≤M≤N.Under PDCCH 1b scene, for a subscriber equipment, the search volume number K of subscriber equipment might equal PDCCH carrier wave number U, and the PDCCH channel Mapping that at this time may have a plurality of carrier wave PDSCH correspondences is to same search volume; Also might equal PDSCH carrier wave number M, at this time, the PDCCH channel Mapping of PDSCH correspondence that may each carrier wave is to separately search volume; Also might equal 1, the PDCCH channel Mapping of the PDSCH correspondence of at this time all carrier waves is to same search volume.In LTE, the load size of DCI form 0 and 1A correspondence is always identical, and also always identical to same polymerization rank search volume.At this moment, these two DCI's has an identical search volume.In LTE, the load size of DCI form 1 and 1B/1D/2/2A correspondence is always identical, and also always identical to same polymerization rank search volume.At this moment, these DCI's has an identical search volume.

As shown in Figure 1, a kind of blind checking method that when subscriber equipment has the receiving ability of at least two member carriers or transmitting capacity, provides for the embodiment of the invention.

101, obtain the PDCCH search volume relevant information of subscriber equipment from network side, one of search volume of at least two different sizes of PDCCH search volume relevant information indication of described subscriber equipment;

102,, determine a search volume of subscriber equipment according to the PDCCH search volume relevant information of the described subscriber equipment that obtains.

Determine that search volume of subscriber equipment is specifically as follows: the PDCCH blind Detecting number of times B that obtains the search volume of subscriber equipment from network side ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information; PDCCH blind Detecting number of times B according to the search volume of the subscriber equipment that obtains ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is determined a search volume of described subscriber equipment.

Determine that search volume of subscriber equipment specifically can also be PDCCH blind Detecting number of times relevant information or the PDCCH candidate number relevant information of obtaining a search volume of subscriber equipment from network side, according to the PDCCH blind Detecting number of times relevant information or the PDCCH candidate number relevant information of a search volume of the subscriber equipment that obtains, determine search volume of subscriber equipment.

103, carry out blind Detecting according to a search volume of the subscriber equipment of determining.

The foregoing description is given the PDCCH blind Detecting number of times or the PDCCH candidate number of a search volume of subscriber equipment by determining scheduling, thereby is implemented the blind Detecting of subscriber equipment under carrier aggregation scene.

When subscriber equipment has been determined a search volume, and carry out blind Detecting.Other search volume can adopt identical method to carry out.Define in also can the employing standard, perhaps other method of signaling is determined.For example, can adopt with the LTE system class like, good by standard definition, the constant search volume of size.When speaking of subscriber equipment below and determining a search volume, the processing mode of other search volume is identical with present processing mode, repeats no more.

As shown in Figure 2, for the embodiment of the invention when subscriber equipment has the receiving ability of at least two member carriers or transmitting capacity, the another kind of blind checking method that provides.

201, obtain the PDCCH blind Detecting number of times B of the search volume of subscriber equipment from network side ^Real _MAXThe PDCCH candidate number M of relevant information or subscriber equipment _ALL ^RealRelevant information.

The PDCCH blind Detecting number of times B of the described search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is used for determining the PDCCH blind Detecting number of times B of the described search volume of described subscriber equipment ^Real _MAXPerhaps PDCCH candidate number M _ALL ^Real, 0＜B ^Real _MAX＜=B _MAXOr 0＜M ^Real _ALL＜=M _ALL

In embodiments of the present invention, network side such as the base station, can be determined the PDCCH blind Detecting number of times B of subscriber equipment according to residing state of subscriber equipment and network load condition ^Real _MAXOr the PDCCH candidate number M of subscriber equipment ^ALLrealWherein

0＜α＜=1, B _MAXMaximum PDCCH blind Detecting number of times for the UE capability support;

0＜α＜=1, wherein M _ALLBe that UE capability is supported PDCCH candidate number. $B_{\mathrm{MAX}}=\underset{i=1}{\overset{N}{\mathrm{\Σ}}}B\left(i\right)\text{,}$ The summation of B (i) subscriber equipment other PDCCH blind Detecting number of times of various polymer grades on i search volume wherein, $B\left(i\right)=\underset{L}{\mathrm{\Σ}}{B}^{\left(L\right)}\left(i\right),$ B ^(L)(i) be the PDCCH blind Detecting number of times of i search volume in polymerization rank L correspondence.

In one embodiment of the invention, network can be the base station, determines the PDCCH blind Detecting number of times B of subscriber equipment according to the residing state of subscriber equipment and network load condition ^Real _MAXOr the PDCCH candidate number M of subscriber equipment _ALL ^RealSubscriber equipment PDCCH blind Detecting number of times can be the PDCCH blind Detecting number of times B of subscriber equipment ^Real _MAX, the PDCCH candidate number of subscriber equipment is the PDCCH candidate number M of subscriber equipment ^Real _ALLNetwork side can be the base station, by the proprietary signaling of RRC, or MAC signaling or physical layer signaling notifying user equipment PDCCH blind Detecting number of times B ^Real _MAXThe PDCCH candidate number M of relevant information or subscriber equipment ^Real _ALLRelevant information.

In one embodiment of the invention, the PDCCH candidate number relevant information of subscriber equipment PDCCH blind Detecting number of times relevant information or subscriber equipment can be the α value.Network side can be the base station, notifying user equipment α value.

In one embodiment of the invention, the PDCCH candidate number relevant information of subscriber equipment PDCCH blind Detecting number of times relevant information or subscriber equipment is the Y value, Y＜=N.Network side can be the base station, notifying user equipment Y value.Because the number of N is limited, for example in 12 typical carrier aggregation scenes of present LTE-A, N is no more than 5, because Y≤N, so it is limited to quantize Y required bit number or state, expense is smaller.

0＜Y＜=N, B _MAXPDCCH blind Detecting number of times for the UE capability support;

$0<\frac{Y}{N}<=1,$ M wherein _ALLThe PDCCH candidate number that UE capability is supported; Y, N are integers, and N is UE capability PDSCH that can support and or the member carrier number of PUSCH.

Further preferably, can think that the physical meaning of Y can be Y corresponding search volume, in other words, this user can use the ability of the PDCCH blind Detecting of Y search volume correspondence.

In one embodiment of the invention, preestablish several PDCCH blind Detecting number of times grades or PDCCH candidate number grade, the corresponding PDCCH blind Detecting number of times of each PDCCH blind Detecting number of times grade, during PDCCH candidate number of each PDCCH candidate number grade correspondence, subscriber equipment PDCCH blind Detecting number of times relevant information can be PDCCH blind Detecting number of times grade; The PDCCH candidate number relevant information of subscriber equipment is a PDCCH candidate number grade.Network side can be the base station, notifying user equipment PDCCH blind Detecting number of times grade or PDCCH candidate number grade.

In the invention process, B ^Real _MAXAnd M _ALL ^RealDetermine according to residing state of subscriber equipment and network load condition, when the PDCCH of subscriber equipment dispatches collision probability than higher, the base station just increases this user's search volume, just increase this user's PDCCH blind Detecting number of times or PDCCH candidate number, reduce this user's PDCCH scheduling collision probability; When the duty ratio of network less, the PDCCH scheduling collision probability of this subscriber equipment is smaller, just reduce this user's PDCCH blind Detecting number of times or PDCCH candidate number, thereby reduce the search volume of this subscriber equipment, reduce the power consumption of this subscriber equipment, thereby realize the adjustment between subscriber equipment power saving and PDCCH scheduling collision reduction.

202, according to the PDCCH blind Detecting number of times B of the search volume of the subscriber equipment that obtains ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is determined a search volume of subscriber equipment.

In one embodiment of the invention, K search volume arranged when subscriber equipment.And total CCE number of supposing the bandwidth correspondence of each PDCCH member carrier all surpasses the CCE size of each polymer grade other the PDCCH search volume of subscriber equipment on this PDCCH member carrier.Subscriber equipment is according to the PDCCH blind Detecting number of times B of the subscriber equipment that obtains ^Real _MAXThe PDCCH candidate number M of relevant information or subscriber equipment _ALL ^RealRelevant information, the PDCCH blind Detecting number of times B of acquisition _Real ^MAXThe perhaps PDCCH candidate number M of subscriber equipment _ALL ^Real, needs are determined the PDCCH blind Detecting number of times B of subscriber equipment distributing user equipment on K search volume ^Real _MAXPerhaps PDCCH candidate number M _ALL ^Real

The embodiment of the invention can be determined PDCCH blind Detecting number of times or the PDCCH candidate number of subscriber equipment on a search volume by following several modes.

In one embodiment of the invention, ${B^{\mathrm{real}}}_{\mathrm{MAX}}=\underset{L}{\mathrm{\&Sigma;}}{B}^{\left(L\right)},$ B wherein ^(L)Be PDCCH candidate number in polymerization rank L correspondence, $B^{\left(L\right)}=\underset{i=1}{\overset{K}{\mathrm{\&Sigma;}}}{B}^{\left(L\right)}\left(i\right),$ B ^(L)(i) be the PDCCH blind Detecting number of times of search volume i in polymerization rank L correspondence, K is the number of the search volume of subscriber equipment.According to dividing equally or similar dividing equally, on K search volume, distribute PDCCH blind Detecting number of times B ^Real _MAX, can represent with formula 1 or formula 2:

Formula 1,

Formula 2

Because $B^{\left(L\right)}\left(i\right)=\underset{i=1}{\overset{D}{\mathrm{\&Sigma;}}}{M}^{\left(L\right)}\left(i\right),$ M ^(L)(i) be the PDCCH candidate number of search volume i in polymerization rank L correspondence.According to B ^(L)(i) can determine M ^(L)(i), B ^(L)(i) and M ^(L)(i) corresponding relation between can be pre-specified, is pre-stored in network side and subscriber equipment.And

Can be according to M ^(L)(i) just can obtain the size of search volume of the polymerization rank L correspondence of search volume i correspondence.

Same, also can be the B in formula 1 and the formula 2 ^(L)(i) change M into ^(L)(i), B ^(L)Change M into ^(L), ${M^{\mathrm{real}}}_{\mathrm{ALL}}=\underset{L}{\mathrm{\&Sigma;}}{M}^{\left(L\right)},$ M wherein ^(L)Be the PDCCH candidate number of all search volume of subscriber equipment on each polymerization rank L, become the computing formula 3 and 4 of PDCCH candidate number, concrete formula is as follows:

Formula 3,

Formula 4

In another one embodiment of the present invention, determine

0＜Y＜=N, B _MAXPDCCH blind Detecting number of times for the UE capability support;

$0<\frac{Y}{N}<=1,$ M wherein _ALLThe PDCCH candidate number that UE capability is supported; Y, N are integers, and N is UE capability PDSCH that can support and or the member carrier number of PUSCH.

Further preferably, can think that the physical meaning of Y can be Y corresponding search volume, in other words, this user can use the ability of the PDCCH blind Detecting of Y search volume correspondence.The PDCCH blind Detecting number of times B that subscriber equipment obtains ^Real _MAXBranch timing K search volume can be set up the mapping relations between Y and the K.

For each search volume i,

Wherein ${B^{\mathrm{real}}}_{\mathrm{MAX}}=\underset{L}{\mathrm{\&Sigma;}}{B}^{\left(L\right)},$ B ^(L)Be the PDCCH blind Detecting number of times of subscriber equipment all search volumes on each polymerization rank L, $B^{\left(L\right)}=\underset{i=1}{\overset{K}{\mathrm{\&Sigma;}}}{B}^{\left(L\right)}\left(i\right),$ B ^(L)(i) be the PDCCH blind Detecting number of times of search volume i in polymerization rank L correspondence, $\stackrel{\&OverBar;}{B^{\left(L\right)}}=\frac{{B^{\mathrm{real}}}_{\mathrm{MAX}}}{N},$ M ^(L)Be the PDCCH candidate number of all search volume of subscriber equipment on each polymerization rank L, M ^(L)(i) be the PDCCH candidate number of search volume i in polymerization rank L correspondence, $\stackrel{\&OverBar;}{M^{\left(L\right)}}=\frac{{M^{\mathrm{real}}}_{\mathrm{MAX}}}{N},$ K be the number of described search volume according to dividing equally or similar dividing equally, on the search volume of K search volume, distribute PDCCH blind Detecting number of times B ^Real _MAX, represent with formula 5 or formula 6:

Formula 5

Formula 6

According to above-mentioned formula 3 or 4, PDCCH candidate number, search volume and PDCCH blind Detecting number of times such as the following table 1 of each search volume of subscriber equipment.

Table 1 is the pairing polymerization rank in the search volume of the embodiment of the invention, search volume size, PDCCH candidate number and PDCCH blind Detecting number of times

Can in base station and subscriber equipment, preserve above table, the base station can notifying user equipment Y value, and subscriber equipment can be determined the pairing polymerization rank in search volume, search volume size, PDCCH candidate number and a PDCCH blind Detecting number of times according to the Y that receives.

In one embodiment of the invention, network, such as the base station, considering has R search volume for subscriber equipment in K the search volume, interference ratio is less, and performance is relatively good, can give this subscriber equipment in a large amount of these R of scheduling search volume, increase the PDCCH candidate number or the PDCCH blind Detecting number of times of this R search volume, thereby can effectively reduce the PDCCH scheduling collision probability of this search volume, thereby effectively promote the throughput of this subscriber equipment.At this moment, can be divided into a plurality of groups to K search volume, the PDCCH blind Detecting number of times in each group is identical, and group is different with the PDCCH blind Detecting number of times between the group.For example, K search volume is divided into the first group searching space, just (K-R) individual search volume is divided into one group and the second group searching space, just R search volume is divided into one group.For each search volume in (K-R) individual search volume, B ^(L)(i)=B _Init ^(L), B _Init ^(L)For preestablish the search volume the PDCCH blind Detecting number of times of polymerization rank L correspondence or LTE-R8 user equipment searches space at the PDCCH blind Detecting number of times of polymerization rank L correspondence, B ^(L)(i) be the PDCCH blind Detecting number of times of search volume i in polymerization rank L correspondence; M ^(L)(i)=M _Init ^(L)I=1,2 ... K, M _Init ^(L)For preestablish the search volume in search volume PDCCH candidate number or the LTE-R8 subscriber equipment of polymerization rank L correspondence the PDCCH candidate number in polymerization rank L correspondence, M ^(L)(i) be that search volume i is when the PDCCH candidate number of polymerization rank L correspondence.For this R search volume, can be (Y-(K-R)) * B _Init ^(L)Distribute to this R search volume of this subscriber equipment.Just for each the search volume j in this R search volume, Preferably, divide equally or approximate dividing equally, for this R search volume, can be (Y-(K-R)) * M _Init ^(L)Distribute to this R search volume of this subscriber equipment.Just for each the search volume j in this R search volume,

Y is an integer, Y*B _Init ^(L)It is the blind Detecting number of times of a polymerization rank L correspondence.

In one embodiment of the invention, when subscriber equipment has K search volume, and in the hypothesis search volume CCE number of total PDCCH CCE number of some search volume correspondences less than each polymer grade other the PDCCH search volume of subscriber equipment on this search volume arranged.Search volume i is M in the PDCCH candidate number of each polymerization rank L ^(L)(i), perhaps search volume i is B at other PDCCH blind Detecting number of times of each polymer grade ^(L)(i), suppose that this subscriber equipment is T in the total CCE number of the PDCCH of this search volume i ^(L)(i), the effective PDCCH candidate number of this subscriber equipment on this search volume is so

(formula 7).The PDCCH blind Detecting number of times B that subscriber equipment obtains ^Real _MAX, need determine distribution K search volume.

In one embodiment of the invention, determine B ^Real _MAX=α B _MAX0＜α＜=1, preferably, $\mathrm{\&alpha;}=\frac{Y}{N}$ Y＜=N, Y, N are integers, and N is the carrier number that the ability of subscriber equipment can support to receive the PDSCH of transmission.The maximum PDCCH blind Detecting number of times that can reach when the PDCCH blind Detecting ability of supposing the subscriber equipment support is B _MAX=N*B, wherein B represents is average PDCCH blind Detecting ability on each member carrier in N the member carrier.So ${B^{\mathrm{real}}}_{\mathrm{MAX}}=\mathrm{\&alpha;}{B}_{\mathrm{MAX}}=\frac{Y}{N}*B_{\mathrm{MAX}}=\frac{Y}{N}*N*\stackrel{\&OverBar;}{B}=Y*\stackrel{\&OverBar;}{B}.$ Further preferably, can think that the physical meaning of Y can be Y corresponding search volume, in other words, this user can use the ability of the PDCCH blind Detecting of Y search volume correspondence.Other PDCCH candidate number of each polymer grade equals Y*M so ^(L), perhaps PDCCH blind Detecting number of times is Y*B ^(L)

Suppose to have in K the search volume CCE number of the PDCCH CCE number of S search volume correspondence less than each the polymerization rank PDCCH search volume of subscriber equipment on this search volume, effective PDCCH candidate number of this S search volume is

Effective PDCCH blind Detecting number of times of this S search volume is

On this S search volume, can be PDCCH candidate number or the PDCCH blind Detecting number of times of this user equipment allocation on this S search volume according to effective PDCCH candidate number or effective PDCCH blind Detecting number of times.On all the other K-S search volume, distribute M ^Real _ALLDeduct the PDCCH candidate number of the effective PDCCH candidate number on S the search volume, perhaps distribute B ^Real _MAXDeduct the PDCCH blind Detecting number of times of the effective PDCCH blind Detecting number of times on S the search volume.Preferably, divide equally, represent with formula 8,9,10 or 11:

Formula 8

Formula 9

Wherein, B ^(L)Be the PDCCH blind Detecting number of times of subscriber equipment all search volumes on each polymerization rank L, B ^(L)(i) be the PDCCH blind Detecting number of times of search volume i in polymerization rank L correspondence,

T _j ^(L)(i) be the total CCE number of PDCCH of PDCCH carrier wave i, B _Eff ^(L)(i) be effective PDCCH blind Detecting number of times of i search volume in the described S search volume.

Perhaps, top formula 6, B in the formula 7 _i ^(L)Change M into _i ^(L), B ^(L)Change M into _(L), B _{S_eff} ^(L)Change M into _{S_eff} ^(L)

Formula 10

Formula 11

Wherein, M ^(L)Be the PDCCH candidate number of all search volume of subscriber equipment on each polymerization rank L, M ^(L)(i) be the PDCCH candidate number of search volume i in polymerization rank L correspondence,

M _Eff ^(L)(i) be effective PDCCH candidate number of i search volume in the described S search volume.

Obviously, work as S=0, formula 8 just becomes formula 1, and formula 9 just becomes formula 2.

In embodiments of the present invention, can be in advance any one or a plurality of formula in the above-mentioned formula 1 to 11, be kept at base station and subscriber equipment respectively, subscriber equipment is according to the PDCCH blind Detecting number of times B of the subscriber equipment that obtains ^Real _MAXThe PDCCH candidate number M of relevant information or subscriber equipment _ALL ^RealRelevant information is utilized the formula of preserving, and determines PDCCH blind Detecting number of times or the PDCCH candidate number of subscriber equipment on a search volume, and i is a value of selecting.

The search volume of all PDCCH is UE all PDCCH candidates' that need monitor set, and the PDCCH candidate of search volume is polymerized by CCE, therefore will determine the search volume, needs to determine to form search volume S _k ^(L)CCE, wherein, L is the polymerization rank, k is current subframe numbers

Form search volume S _k ^(L)The formula of CCE be:

Formula 12

Wherein, i=0 ..., L-1, m=0 ..., M ^(L)(i)-1.M ^(L)When being L for the polymerization rank, PDCCH candidate number to be detected.N _CCEThe CCE sum that uses when k the subframe for this user.

Wherein, Y _k=(AY _K-1) modD.Y wherein _-1=F (n _RNTI, n) ≠ 0 or according to prior art Y _-1=n _RNTI≠ 0, F (k) represents certain function, A=39827, and D=65537,

n _sBe sequential (slot) sequence number of a radio frames, n _RNTIBe RNTI (Radio Network Temporary Identifier Radio Network Temporary Identifier) value, be the sign of UE.Determined search volume S according to formula 12 _k ^(L), also can determine the search volume according to other pre-specified rule, the present invention does not limit.

203, carry out blind Detecting according to a search volume of the subscriber equipment of determining.

Determined search volume S _k ^(L), just can carry out blind Detecting.

In the embodiment of the invention, be implemented in PDCCH blind Detecting number of times B under the carrier aggregation scene ^Real _MAXDistribution K search volume, the blind Detecting of realization subscriber equipment guarantees the adjustment between subscriber equipment power saving and PDCCH scheduling collision reduction simultaneously.

As shown in Figure 3, the another kind of blind checking method that provides for the embodiment of the invention.

301, from the PDCCH blind Detecting number of times relevant information or the PDCCH candidate number relevant information of the search volume of subscriber equipment that network side obtains.

In embodiments of the present invention, work as B ^(L)(i)=β (i) * B _Init ^(L)I=1,2 ... K or i be among 1 ~ K any one or a plurality of, when i be among 1 ~ K any one or a plurality of, other do not have the blind Detecting number of times of notified search volume correspondence or the value that PDCCH candidate number just adopts network side and subscriber equipment to pre-determine, B _Init ^(L)For preestablish the search volume in the search volume of the PDCCH blind Detecting number of times of polymerization rank L correspondence or LTE-R8 subscriber equipment the PDCCH blind Detecting number of times in polymerization rank L correspondence, B ^(L)(i) be the PDCCH blind Detecting number of times of search volume i in polymerization rank L correspondence; M ^(L)(i)=β (i) * M _Init ^(L)I=1,2 ... K, M _Init ^(L)For preestablish the search volume in the search volume of the PDCCH candidate number of polymerization rank L correspondence or LTE-R8 subscriber equipment the PDCCH candidate number in polymerization rank L correspondence, M ^(L)(i) be the PDCCH candidate number of search volume i in polymerization rank L correspondence, obtain the PDCCH blind Detecting number of times relevant information of each search volume of subscriber equipment or PDCCH candidate number relevant information for to obtain β (i) value from network side from network side, i is a value of selecting.

In one embodiment of the invention, network, such as the base station, considering has R search volume for subscriber equipment in K the search volume, interference ratio is less, and performance is relatively good, can give this subscriber equipment in a large amount of these R of scheduling search volume, increase the PDCCH candidate number or the PDCCH blind Detecting number of times of this R search volume, thereby can effectively reduce the PDCCH scheduling collision probability of this search volume, thereby effectively promote the throughput of this subscriber equipment.At this moment, can be divided into a plurality of groups to K search volume, the PDCCH blind Detecting number of times in each group is identical, and group is different with the PDCCH blind Detecting number of times between the group.Suppose K search volume is divided into the Q group, the PDCCH blind Detecting number of times or the PDCCH candidate number of the carrier wave in each group are identical, B ^(L)(g)=β (g) * B _Init ^(L)G=1 ... ..Q, B _Init ^(L)For predefined search volume in search volume PDCCH blind Detecting number of times or the LTE-R8 subscriber equipment of polymerization rank L correspondence the PDCCH blind Detecting number of times in polymerization rank L correspondence, B ^(L)(g) be the PDCCH blind Detecting number of times of search volume group g in polymerization rank L correspondence; M ^(L)(g)=β (g) * M _Init ^(L)G=1 ... ..Q, M _Init ^(L)For the PDCCH blind Detecting number of times that is set in advance in polymerization rank L correspondence or the LTE-R8 subscriber equipment at the PDCCH blind Detecting number of times of polymerization rank L correspondence, M ^(L)(g) be the PDCCH blind Detecting number of times of search volume group g in polymerization rank L correspondence.Obtain the PDCCH blind Detecting number of times relevant information of each search volume of subscriber equipment or PDCCH candidate number relevant information for to obtain β (g) value from network side from network side.

In the LTE system,, defined the transmission mode that adopts in subscriber equipment a period of time, and planned the search volume in order to reduce subscriber equipment carries out blind Detecting in the control channel zone number of times.So-called search volume is define according to control channel unit (CCE) one a section running time-frequency resource in logic, and subscriber equipment receives control channel and carries out blind Detecting in this space.The search volume is divided into common search volume and the specific search volume of subscriber equipment, be meant that for the common search space all subscriber equipmenies that are in connection status and need detect PDCCH all need to carry out blind Detecting, and be meant that for the specific search volume of subscriber equipment this subscriber equipment only need carry out the PDCCH blind Detecting in this space.In the specific search volume of subscriber equipment, the CCE of some forms a search volume, the control channel of being made up of 4 kinds of CCE quantity all has search volume separately, with 1,2,4 and 8CCE to amount to the 4 kinds of corresponding space of polymerization grade sizes be 6,6,2 and 2, promptly, all need the possibility of 6 kinds of blind Detecting for a kind of PDCCH form for 1 and 2CCE polymerization grade; For 4 and 8CCE polymerization grade, all need the possibility of 2 kinds of blind Detecting for a kind of PDCCH form.As following table 2

The pairing polymerization rank in table 2 search volume, search volume size, PDCCH Candidate Set number

The search volume is the one section running time-frequency resource in logic that defines according to CCE, and subscriber equipment receives PDCCH and carries out blind Detecting in this search volume.The search volume of each polymerization rank L correspondence refers to the CCE of polymerization rank L correspondence.PDCCH candidate number is

The PDCCH blind Detecting number of times of each polymerization rank L correspondence $B^{\left(L\right)}=\underset{j=1}{\overset{D}{\mathrm{\&Sigma;}}}{M}_j^{\left(L\right)},$ D is the number of different DCI (Downlink ControlInformation, Downlink Control Information).Here the search volume of having supposed the control channel of the different DCI correspondence that load size (Payload size) is identical be do not have fully overlapping.If the search volume of the control channel of the DCI correspondence that load size is identical is overlapping fully, in the then above-mentioned formula, D is the number of the DCI of different load size, and the blind Detecting of the control channel of a plurality of DCI correspondences that the load size is identical is only calculated once.Total blind Detecting number of times B is the blind Detecting number of times B of each polymerization rank L ^(L)Summation, promptly $B=\underset{L}{\mathrm{\&Sigma;}}{B}^{\left(L\right)}=\underset{L}{\mathrm{\&Sigma;}}\underset{j=1}{\overset{D}{\mathrm{\&Sigma;}}}{M}_j^{\left(L\right)}.$ Existing LTE agreement, the number of D are for any polymerization rank, and the number of D all is identical.

302, according to the PDCCH blind Detecting number of times relevant information or the PDCCH candidate number relevant information of a search volume of subscriber equipment that obtains, determine search volume of subscriber equipment.

Can be on network side and subscriber equipment, preserve predefined search volume in search volume PDCCH blind Detecting number of times or the LTE-R8 subscriber equipment of polymerization rank L correspondence the PDCCH blind Detecting number of times in polymerization rank L correspondence, perhaps preserve predefined search volume in search volume PDCCH candidate number or the LTE-R8 subscriber equipment of polymerization rank L correspondence the PDCCH candidate number in polymerization rank L correspondence.Concrete determine subscriber equipment on a search volume PDCCH blind Detecting number of times or during PDCCH candidate number, subscriber equipment can according to predefined search volume in search volume PDCCH blind Detecting number of times or the LTE-R8 subscriber equipment of polymerization rank L correspondence the PDCCH blind Detecting number of times in polymerization rank L correspondence, and, determine the PDCCH blind Detecting number of times of subscriber equipment on a search volume from network side acquisition β (i) value; Perhaps subscriber equipment can according to predefined search volume in search volume PDCCH candidate number or the LTE-R8 subscriber equipment of polymerization rank L correspondence the PDCCH candidate number in polymerization rank L correspondence, and, determine the PDCCH candidate number of subscriber equipment on a search volume from network side acquisition β (i) value.Can certainly determine PDCCH blind Detecting number of times or the PDCCH candidate number and the corresponding relevant information of each search volume of subscriber equipment.PDCCH blind Detecting number of times or the summation of PDCCH candidate number of subscriber equipment on each search volume can not surpass maximum PDCCH blind Detecting number of times or the PDCCH candidate number that UE capability can be supported.

Perhaps, can be according to the PDCCH blind Detecting number of times relevant information or the PDCCH candidate number relevant information of a DCI correspondence of a search volume of described acquisition subscriber equipment, determine the PDCCH blind Detecting number of times or the PDCCH candidate number of a DCI correspondence of a search volume of subscriber equipment, according to the PDCCH blind Detecting number of times or the PDCCH candidate number of a DCI correspondence of a search volume of described definite subscriber equipment, determine the search volume of a DCI correspondence of a search volume of subscriber equipment.

The search volume of all PDCCH is UE all PDCCH candidates' that need monitor set, and the PDCCH candidate of search volume is polymerized by CCE, therefore will determine the search volume, needs to determine to form search volume S _k ^(L)CCE, wherein, L is the polymerization rank, k is current subframe numbers

Form search volume S _k ^(L)The formula of CCE be:

Formula 12

Wherein, i=0 ..., L-1, m=0 ..., M ^(L)(i)-1.M ^(L)When being L for the polymerization rank, PDCCH candidate number to be detected.N _CCEThe CCE sum that uses when k the subframe for this user.

Wherein, Y _k=(AY _K-1) modD.Y wherein _-1=F (n _RNTI, n) ≠ 0 or according to prior art Y _-1=n _RNTI≠ 0, F (k) represents certain function, A=39827, and D=65537,

n _sBe sequential (slot) sequence number of a radio frames, n _RNTIBe RNTI (Radio Network Temporary Identifier Radio Network Temporary Identifier) value, be the sign of UE.Determined search volume S according to formula 12 _k ^(L), also can determine the search volume according to other pre-specified rule, the present invention does not limit.

303, carry out blind Detecting according to search volume of subscriber equipment of determining.

Determine the search volume, just can carry out blind Detecting.

In the embodiment of the invention, be implemented in of the distribution of the PDCCH blind Detecting number of times of subscriber equipment under the carrier aggregation scene, realize the blind Detecting of subscriber equipment, guarantee the adjustment between subscriber equipment power saving and PDCCH scheduling collision reduction K search volume.

As shown in Figure 4, a kind of method for channel allocation that provides for the embodiment of the invention.

401, determine the PDCCH blind Detecting number of times B in user equipment searches space ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information.

The PDCCH blind Detecting number of times B of subscriber equipment ^Real _MAXThe perhaps PDCCH candidate number M of subscriber equipment _ALL ^Real, wherein

0＜α＜=1, B _MAXMaximum PDCCH blind Detecting number of times for the UE capability support;

0＜α＜=1, wherein M _ALLUE capability is supported PDCCH candidate number.

$B_{\mathrm{MAX}}=\underset{i=1}{\overset{N}{\mathrm{\&Sigma;}}}B\left(i\right),$ Wherein B (i) is the PDCCH blind Detecting number of times of search volume i, $B\left(i\right)=\underset{L}{\mathrm{\&Sigma;}}{B}^{\left(L\right)}\left(i\right),$ B ^(L)(i) be the PDCCH blind Detecting number of times of search volume i in polymerization rank L correspondence.

The PDCCH blind Detecting number of times B of subscriber equipment ^Real _MAXThe perhaps PDCCH candidate number M of subscriber equipment _ALL ^Real, can determine according to residing state of subscriber equipment and network load condition etc.Here, determine subscriber equipment PDCCH blind Detecting number of times B ^Real _MAXThe PDCCH candidate number M of relevant information or subscriber equipment _ALL ^RealThe method of relevant information specifically can be referring to corresponding description corresponding in the above-mentioned enforcement.

Wherein, subscriber equipment PDCCH blind Detecting number of times relevant information can be the PDCCH blind Detecting number of times B of subscriber equipment ^Real _MAXThe PDCCH candidate number relevant information of subscriber equipment is the PDCCH candidate number M of subscriber equipment _ALL ^RealPerhaps, the PDCCH candidate number relevant information of subscriber equipment PDCCH blind Detecting number of times relevant information or subscriber equipment can the α value.Perhaps, preferably, $\mathrm{\&alpha;}=\frac{Y}{N}$ Y＜=N, the PDCCH candidate number relevant information of subscriber equipment PDCCH blind Detecting number of times parameter and subscriber equipment is the Y value.Perhaps, preestablish several PDCCH blind Detecting number of times grades or PDCCH candidate number grade, the corresponding PDCCH blind Detecting number of times of each PDCCH blind Detecting number of times grade, during PDCCH candidate number of each PDCCH candidate number grade correspondence, subscriber equipment PDCCH blind Detecting number of times relevant information can be PDCCH blind Detecting number of times grade; The PDCCH candidate number relevant information of subscriber equipment is a PDCCH candidate number grade.

402, notify the PDCCH blind Detecting number of times B of the search volume of the definite subscriber equipment of this subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information.

403, according to the search volume PDCCH blind Detecting number of times B of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is determined a search volume of described subscriber equipment;

Step 403 can be exchanged with step 402 order.

Search volume PDCCH blind Detecting number of times B according to described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is determined the PDCCH candidate number of a search volume of described subscriber equipment; According to the PDCCH candidate number of a search volume of described subscriber equipment, determine a search volume of described subscriber equipment; Specifically can be referring to corresponding description corresponding in the above-mentioned enforcement.

404,, distribute the PDCCH of described subscriber equipment according to a described search volume determining described subscriber equipment.

In the invention process, B ^Real _MAXAnd M _ALL ^RealDetermine according to residing state of subscriber equipment and network load condition, when the PDCCH of subscriber equipment dispatches collision probability than higher, the base station just increases this user's search volume, just increase this user's PDCCH blind Detecting number of times or PDCCH candidate number, reduce this user's PDCCH scheduling collision probability; When the duty ratio of network less, the PDCCH scheduling collision probability of this subscriber equipment is smaller, just reduce this user's PDCCH blind Detecting number of times or PDCCH candidate number, thereby reduce the search volume of this subscriber equipment, reduce the power consumption of this subscriber equipment, thereby realize the adjustment between subscriber equipment power saving and PDCCH scheduling collision reduction.Simultaneously, subscriber equipment is according to this subscriber equipment PDCCH blind Detecting number of times relevant information that receives or the PDCCH candidate number relevant information of subscriber equipment, determine PDCCH blind Detecting number of times or the PDCCH candidate number of subscriber equipment on a search volume, thereby be implemented in the blind Detecting under the carrier aggregation scene.

As shown in Figure 5, the control channel that provides for the embodiment of the invention method of distributing.

501, determine the PDCCH blind Detecting number of times relevant information or the PDCCH candidate number relevant information of a search volume, perhaps the candidate PDCCH channel related information of a search volume.

In embodiments of the present invention, when I=1,2 ... K, B _Init ^(L)For predefined search volume in search volume PDCCH blind Detecting number of times or the LTE-R8 subscriber equipment of polymerization rank L correspondence the PDCCH blind Detecting number of times in polymerization rank L correspondence, B ^(L)(i) be the PDCCH blind Detecting number of times of search volume i in polymerization rank L correspondence;

I=1,2 ... K, M _Init ^(L)For predefined search volume in search volume PDCCH candidate number or the LTE-R8 subscriber equipment of polymerization rank L correspondence the PDCCH candidate number in polymerization rank L correspondence, M ^(L)(i) be search volume i when the PDCCH candidate number of polymerization rank L correspondence, the PDCCH blind Detecting number of times relevant information of subscriber equipment each search volume in this search volume or PDCCH candidate number relevant information can be for obtaining β (i) value.Network side is worth according to definite β (i) such as residing state of subscriber equipment and network load conditions.

Can be on network side and subscriber equipment, preserve predefined search volume in search volume PDCCH blind Detecting number of times or the LTE-R8 subscriber equipment of polymerization rank L correspondence the PDCCH blind Detecting number of times in polymerization rank L correspondence, perhaps preserve the PDCCH candidate number of predefined search volume in search volume polymerization rank L correspondence PDCCH candidate number or the LTE-R8 subscriber equipment of polymerization rank L correspondence.

Certainly determine PDCCH blind Detecting number of times or the PDCCH candidate number and the corresponding relevant information of each search volume of subscriber equipment.PDCCH blind Detecting number of times or the summation of PDCCH candidate number of subscriber equipment on each search volume can not surpass maximum PDCCH blind Detecting number of times or the PDCCH candidate number that UE capability can be supported.

Can also determine the candidate PDCCH channel related information of a search volume, the PDCCH channel on for example can each search volume is perhaps notified the search volume at each PDCCH channel place.Here N search volume is by other signaling of system, perhaps the N that defines in a standard search volume.For example when N PDSCH branch carrier wave is arranged, can in the carrier wave at PDCCH channel place, define N search volume altogether when descending.For a PDCCH channel, need the N bit at most, just can represent which search volume this PDCCH channel specifically can be carried on.If M control channel arranged, perhaps M organizes control channel, and the signaling of every group of notice is identical, then needs the M*N bit, just can notify.But determining of the PDCCH channel search space here must be satisfied a restriction, and promptly total blind Detecting number of times can not surpass user's maximum capacity.Can in the scope of user's maximum capacity, determine the different search volume of corresponding different blind Detecting number of times.And 502 notices are gone down as follows.M, N are positive integers.

502, notify this subscriber equipment a search volume of determining PDCCH blind Detecting number of times relevant information or PDCCH candidate number relevant information or notify the relevant information of search volume of the PDCCH channel of this subscriber equipment.

503, according to the PDCCH blind Detecting number of times relevant information or the PDCCH candidate number relevant information of the search volume of determining of subscriber equipment, the perhaps information of the search volume of PDCCH channel is determined a search volume of described subscriber equipment;

Step 503 can be exchanged with step 502 order.

According to the PDCCH blind Detecting number of times relevant information or the PDCCH candidate number relevant information of the search volume of determining of described subscriber equipment, determine the PDCCH candidate number of a search volume of described subscriber equipment; According to the PDCCH candidate number of a search volume of described subscriber equipment, determine a search volume of described subscriber equipment; Perhaps, obtain the search volume information of PDCCH channel through certain operations according to the search volume information of the PDCCH channel of signaling.For example, signaling the search volume of a PDCCH channel, perhaps for the search volume of a PDCCH channel of signaling, carry out certain operations with the search volume of other PDCCH control channel, if for example the load size of other control channel and current PDCCH control channel is identical, the search volume of then current PDCCH control channel is the union of sets of the search volume of current PDCCH channel and the PDCCH control channel search volume that load size is identical in addition.This is because this union operation does not increase the blind Detecting number of times of terminal.So, the increase that can not bring blind Detecting.Specifically can be referring to corresponding description corresponding in the above-mentioned enforcement.

When the user has the blind Detecting ability of M PDSCH (perhaps PUSCH) carrier wave, if the PDSCH carrier wave K＜M of the current use of user then can enlarge the search volume of PDCCH channel by the mode (signaling method as the aforementioned) of signaling.For example, if K search volume arranged, corresponding K group PDCCH channel, then can allow at least one PDCCH channel can be positioned at the search volume of other PDCCH correspondence now, the running time-frequency resource that is the PDCCH channel occupancy has greater flexibility, thereby reduces the collision probability of the PDCCH channel allocation between the different user.Certainly, for power saving, be that terminal is kept a less blind Detecting number level, can notify the search volume of the PDCCH channel of terminal not do expansion.Thereby realize the adjustment between PDCCH channel allocation collision probability and the terminal power saving.The PDCCH channel group is because the search volume of some control channel is always overlapping usually, for example is used in the LTE system that down channel resources distributes and the search volume of the PDCCH channel that uplink channel resources distributes is always complete overlapping, can notify together.And do not notify separately.Can save some signalings like this.

504,, distribute the PDCCH of described subscriber equipment according to a described search volume determining described subscriber equipment.

In the invention process, β (i) value is determined according to residing state of subscriber equipment and network load condition, when the PDCCH of subscriber equipment dispatches collision probability than higher, the base station just increases this user's search volume, just increase this user's PDCCH blind Detecting number of times or PDCCH candidate number, reduce this user's PDCCH scheduling collision probability; When the duty ratio of network less, the PDCCH scheduling collision probability of this subscriber equipment is smaller, just reduce this user's PDCCH blind Detecting number of times or PDCCH candidate number, thereby reduce the search volume of this subscriber equipment, reduce the power consumption of this subscriber equipment, thereby realize that subscriber equipment power saving or PDCCH scheduling collision reduce.Simultaneously, subscriber equipment is according to the PDCCH blind Detecting number of times relevant information on each search volume or the PDCCH candidate number relevant information that receive, determine PDCCH blind Detecting number of times or the PDCCH candidate number of subscriber equipment on each search volume, thereby be implemented in the blind Detecting under the carrier aggregation scene.

In one embodiment of the invention, owing to the system bandwidth of some carrier wave and the reasons such as transmission mode of subscriber equipment, may make corresponding DCI i ' identical with the load size of DCI i, needed PDCCH blind Detecting number of times just reduces half on the common factor of the search volume of these two kinds of DCI form correspondences.Such as, the search volume of DCI i correspondence is A _i, and the search volume of DCI form i ' correspondence is A _{I '}, the search volume size before not changing, the PDCCH blind Detecting number of times that subscriber equipment can carry out is ${B^{\mathrm{real}}}_{\mathrm{MAX}}-\underset{L}{\mathrm{\&Sigma;}}\underset{i=1}{\overset{D^{\&prime;}}{\mathrm{\&Sigma;}}}\frac{A_{i^{\&prime;}}\&cap;A_i}{L},$ A wherein _{I '}∩ A _iRefer to pair set A _{I '}And A _iSeek common ground.In the invention process, need to utilize residue to detect number of times , realize that subscriber equipment PDCCH scheduling collision probability reduces.

As shown in Figure 6, when the search volume of the identical different DCI correspondence of load size have overlapping, the another kind of blind Detecting that provides for the embodiment of the invention or the method for channel allocation.

601, determine the recruitment of the search volume of the different DCI form correspondences that the load size is identical;

Determine the search volume of the increase of the DCI form correspondence that the load size is identical, can be the relevant information of the recruitment of the search volume that obtains the identical different DCI correspondence of load size from network side, according to the relevant information of the recruitment of the search volume of the identical different DCI correspondence of the load of obtaining size, determine the recruitment of the search volume of the different DCI correspondence that the load size is identical.For example network side can be remaining PDCCH blind Detecting number of times The χ of ability times, 0≤χ≤1.χ=1 for example, the search volume of distributing to the identical different DCI correspondence of load size increases corresponding A altogether _{I '}∩ A _iThereby, make PDCCH blind Detecting number of times can reach B ^Real _MAXOr only allow subscriber equipment increase the search volume of certain or certain several DC form, and also remaining PDCCH blind Detecting number of times being used up, concrete remaining PDCCH blind Detecting number of times distributes on these several DCI forms, also can adopt formula 5 or 6.When χ=0, just can not increase the search volume of any DCI form.

Also can subscriber equipment and network side or base station certain rule by appointment, determine the recruitment of the search volume of the different DCI correspondence that the load size is identical by subscriber equipment.Such as the condition when satisfied certain agreement, for example subscriber equipment surpasses certain threshold value detection time, does not detect effective PDCCH, and other is A for the increase of the search volume of the DCI correspondence that the DCI form that the load size is identical is different _{I '}∩ A _iThereby, make PDCCH blind Detecting number of times can reach B ^Real _MAXPerhaps surpass certain threshold value when subscriber equipment detection time, do not detect effective PDCCH of some or a plurality of DCI correspondences, subscriber equipment is determined just all to give the PDCCH blind Detecting number of times of some or a plurality of DCI correspondences remaining PDCCH blind Detecting number of times, thereby increases the search volume of this one or more DCI form correspondence.When satisfying the condition of certain agreement in addition, the user just keeps original search volume, does not use these remaining blind Detecting abilities, reaches purpose of power saving.

602, the subscriber equipment basis determines that the recruitment of the search volume of the DCI form correspondence that the load size is identical is carried out blind Detecting or the network equipment carries out the distribution of PDCCH channel according to the recruitment of the search volume of the identical DCI form correspondence of load size.

In embodiments of the present invention, can be at network, such as the base station, the blind checking method that can provide according to front embodiment, the PDCCH blind Detecting number of times B of subscriber equipment distributing user equipment on K search volume ^Real _MAXPerhaps PDCCH candidate number M _ALL ^RealAfter, further utilize remaining PDCCH blind Detecting number of times Ability realizes the adjustment between the minimizing of subscriber equipment power saving and PDCCH scheduling collision probability.

As shown in Figure 7, be a kind of subscriber equipment that the embodiment of the invention provided, the receiving ability or the transmitting capacity of at least two member carriers of this subscriber equipment tool.This subscriber equipment comprises:

Acquiring unit 701 is used to obtain the search volume relevant information of described subscriber equipment, and this search volume relevant information belongs to one of search volumes of at least two different sizes;

Processing unit 1 is used for the search volume relevant information of the described subscriber equipment that obtains according to acquiring unit, determines a search volume of described subscriber equipment;

Detecting unit 703, blind Detecting is carried out in a search volume that is used for the described subscriber equipment determined according to processing unit 1.

This subscriber equipment is used for carrying out the blind checking method that the invention process provides.Wherein, acquiring unit 701 specifically is used for obtaining any information of following information or the combination of information: the PDCCH blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information; The PDCCH blind Detecting number of times relevant information of a search volume or PDCCH candidate number relevant information in the search volume of described subscriber equipment; Candidate PDCCH relevant information in the search volume of described subscriber equipment.The method that acquiring unit 701 specifically obtains and the implication of these relevant informations can just not be described in detail here referring to the appropriate section of the blind checking method that provides in the invention process.

Described processing unit 1 is used for the PDCCH blind Detecting number of times B of the search volume of the described subscriber equipment that obtains according to acquiring unit 701 ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is determined each PDCCH search volume of described subscriber equipment; Perhaps the PDCCH blind Detecting number of times relevant information or the PDCCH candidate number relevant information of a search volume in the search volume of the described subscriber equipment that obtains according to acquiring unit 701 are determined each PDCCH search volume of described subscriber equipment.The processing unit one 702 concrete methods of determining can just not be described in detail here referring to the appropriate section of the blind checking method that provides in the invention process.

Described processing unit 1, the recruitment of the search volume of the different DCI correspondence that also is used for determining that the load size is identical; Described detecting unit 703 also is used for carrying out blind Detecting according to the recruitment of the search volume of the identical DCI form correspondence of described definite load size.

Be understandable that, only be schematic in the accompanying drawing or shown in the embodiment, the presentation logic structure, the wherein said module that shows as separating component may or may not be physically to separate, the parts that show as module may be or may not be physical locations, promptly can be positioned at a place, perhaps be distributed on several network entities.

This subscriber equipment is dispatched the PDCCH blind Detecting number of times or the PDCCH candidate number of giving on the search volume of subscriber equipment according to determining, carries out blind Detecting, thereby has realized the blind Detecting of subscriber equipment under carrier aggregation scene.

As shown in Figure 8, be a kind of communicator that the embodiment of the invention provided, be used for and have the receiving ability of at least two member carriers or the subscriber equipment of transmitting capacity communicates that this communicator comprises:

Processing unit 2 801, be used for determining the search volume relevant information of described subscriber equipment, also be used for determining according to the search volume relevant information of described subscriber equipment the search volume of described subscriber equipment, described search volume relevant information belongs to one of search volume of at least two different sizes;

Transmitting element 802 is used for the search volume relevant information of the described subscriber equipment notifier processes unit 2 801 determined;

Allocation units are used for the search volume according to described definite described subscriber equipment, distribute the PDCCH of described subscriber equipment.

This processing unit 2 801, described processing unit two specifically is used for PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) the blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information, also be used for according to described subscriber equipment the PDCCH blind Detecting number of times B of search volume ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is determined the search volume of described subscriber equipment; Perhaps, be used for determining the PDCCH blind Detecting number of times relevant information or the PDCCH candidate number relevant information of each search volume, search volume of described subscriber equipment, also be used for according to the PDCCH blind Detecting number of times relevant information of each search volume, search volume of described subscriber equipment or the search volume that PDCCH candidate number relevant information is determined described subscriber equipment; Perhaps, be used for determining the PDCCH relevant information of each search volume, search volume of described subscriber equipment, also be used for determining the search volume of described subscriber equipment according to the PDCCH relevant information of each search volume, search volume of described subscriber equipment.Processing unit 2 801, the concrete method of determining can just not be described in detail here referring to the appropriate section of the method that provides in the invention process.

This transmitting element 802 specifically is used for sending any information of processing unit 2 801 determined following information or the combination of information: the PDCCH blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information; The PDCCH blind Detecting number of times relevant information of a search volume or PDCCH candidate number relevant information in the search volume of described subscriber equipment; The relevant information of a search volume in the search volume of described subscriber equipment.Transmitting element 802 concrete sending methods can just not be described in detail here referring to the appropriate section of the method that provides in the invention process.

This processing unit 2 801, the recruitment of the search volume of the different DCI correspondence that also is used for determining that the load size is identical; This transmitting element 802 also is used to send the recruitment of the search volume of the identical different DCI correspondence of described processing unit two determined loads sizes.

Be understandable that, only be schematic in the accompanying drawing or shown in the embodiment, the presentation logic structure, the wherein said module that shows as separating component may or may not be physically to separate, the parts that show as module may be or may not be physical locations, promptly can be positioned at a place, perhaps be distributed on several network entities.

This communicator determines that scheduling is to PDCCH blind Detecting number of times relevant information or PDCCH candidate number relevant information on the search volume of subscriber equipment, thereby make subscriber equipment PDCCH blind Detecting number of times relevant information or PDCCH candidate number relevant information basis carry out blind Detecting, thereby realized the blind Detecting of subscriber equipment under carrier aggregation scene.One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.

More than blind checking method and device that the embodiment of the invention provided are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (25)

1. channel blind detecting method, the subscriber equipment at receiving ability with at least two member carriers or transmitting capacity is characterized in that, comprising:

Obtain Physical Downlink Control Channel (PDCCH, Physical Downlink ControlChannel) the search volume relevant information of described subscriber equipment from network side, this search volume relevant information belongs to one of search volumes of at least two different sizes;

According to the PDCCH search volume relevant information of the described described subscriber equipment that obtains, determine a PDCCH search volume of described subscriber equipment;

Blind Detecting is carried out in a PDCCH search volume according to described definite described subscriber equipment.

2. the method for claim 1 is characterized in that, the described PDCCH search volume relevant information of obtaining described subscriber equipment from network side is specially: the PDCCH blind Detecting number of times B that obtains the search volume of described subscriber equipment from network side ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information.

3. method as claimed in claim 2 is characterized in that, the PDCCH blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information is PDCCH blind Detecting number of times B ^Real _MAX, perhaps PDCCH candidate number M _ALL ^RealRelevant information is a PDCCH candidate number M _ALL ^Real

The PDCCH blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is the α value, wherein

0＜α＜=1, B _MAXMaximum PDCCH blind Detecting number of times for the UE capability support;

0＜α＜=1, wherein M _ALLThe PDCCH candidate number that UE capability is supported;

The PDCCH blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is the Y value, wherein,

$0<\frac{Y}{N}<=1,$ $0<\frac{Y}{N}<=1,$ B wherein _MAXBe the maximum PDCCH blind Detecting number of times that UE capability is supported, M _ALLThe PDCCH candidate number that UE capability is supported, Y, N are integers, N be the UE capability PDSCH that can support and or the member carrier number of PUSCH; Perhaps,

The PDCCH blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information is PDCCH blind Detecting number of times grade, perhaps PDCCH candidate number M _ALL ^RealRelevant information is a PDCCH candidate number grade, and wherein, described PDCCH blind Detecting number of times grade or PDCCH candidate number grade be corresponding PDCCH blind Detecting number of times or PDCCH candidate number respectively.

4. method as claimed in claim 3 is characterized in that,

PDCCH blind Detecting number of times B when the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is PDCCH blind Detecting number of times B ^Real _MAXOr PDCCH candidate number M _ALL ^RealThe time,

A PDCCH search volume of described definite described subscriber equipment comprises: by label in the search volume of following formula 1 or 2 definite described subscriber equipmenies is the PDCCH blind Detecting number of times of the search volume of i,

Formula 1

Formula 2

Wherein, ${B^{\mathrm{real}}}_{\mathrm{MAX}}=\underset{L}{\mathrm{\&Sigma;}}{B}^{\left(L\right)},$ B ^(L)Be the PDCCH blind Detecting number of times of subscriber equipment all search volumes on each polymerization rank L, $B^{\left(L\right)}=\underset{i=1}{\overset{K}{\mathrm{\&Sigma;}}}{B}^{\left(L\right)}\left(i\right),$ B ^(L)(i) be the PDCCH blind Detecting number of times of search volume i in polymerization rank L correspondence; K is the number of the search volume of described subscriber equipment; Perhaps,

A PDCCH search volume of described definite described subscriber equipment comprises: by label in the search volume of following formula 3 or 4 definite described subscriber equipmenies is the PDCCH candidate number of the search volume of i,

Formula 3

Formula 4

Wherein, ${M^{\mathrm{real}}}_{\mathrm{ALL}}=\underset{L}{\mathrm{\&Sigma;}}{M}^{\left(L\right)},$ M ^(L)Be the PDCCH candidate number of all search volumes of each polymerization rank L correspondence of subscriber equipment, M ^(L)(i) be the PDCCH candidate number of search volume i in polymerization rank L correspondence, i is a value of selecting.

5. method as claimed in claim 3 is characterized in that,

PDCCH blind Detecting number of times B when the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealWhen relevant information is the Y value,

A PDCCH search volume of described definite described subscriber equipment comprises:

By label in the search volume of following formula 5 or 6 definite described subscriber equipmenies is the PDCCH blind Detecting number of times or the PDCCH candidate number of the search volume of i, wherein

Formula 5

Formula 6

Wherein, ${B^{\mathrm{real}}}_{\mathrm{MAX}}=\underset{L}{\mathrm{\&Sigma;}}{B}^{\left(L\right)},$ B ^(L)Be the PDCCH blind Detecting number of times of subscriber equipment all search volumes on each polymerization rank L, $B^{\left(L\right)}=\underset{i=1}{\overset{K}{\mathrm{\&Sigma;}}}{B}^{\left(L\right)}\left(i\right),$ B ^(L)(i) be the PDCCH blind Detecting number of times of search volume i in polymerization rank L correspondence, $\stackrel{\&OverBar;}{B^{\left(L\right)}}=\frac{{B^{\mathrm{real}}}_{\mathrm{MAX}}}{N},$ M ^(L)Be the PDCCH candidate number of all search volume of subscriber equipment on each polymerization rank L, M ^(L)(i) be the PDCCH candidate number of search volume i in polymerization rank L correspondence, $\stackrel{\&OverBar;}{M^{\left(L\right)}}=\frac{{M^{\mathrm{real}}}_{\mathrm{ALL}}}{N},$ K is the number of the search volume of described subscriber equipment, and i is a value of selecting.

6. method as claimed in claim 3 is characterized in that,

Number when the search volume of described subscriber equipment is K, PDCCH CCE (the Control Channel Element that S search volume correspondence arranged in the described K search volume, the control channel unit) number is less than the CCE number of each the polymerization rank PDCCH search volume of described subscriber equipment on S search volume, and the PDCCH blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealWhen relevant information is the Y value,

A PDCCH search volume of described definite described subscriber equipment comprises:

By label in the search volume of following formula 8 or 9 definite described subscriber equipmenies is the PDCCH blind Detecting number of times of the search volume of i,

Formula 8

Formula 9

Wherein, B ^(L)Be the PDCCH blind Detecting number of times of subscriber equipment all search volumes on each polymerization rank L, B ^(L)(i) be the PDCCH blind Detecting number of times of search volume i in polymerization rank L correspondence,

T _j ^(L)(i) be the total CCE number of PDCCH of PDCCH carrier wave i, B _Eff ^(L)(i) be effective PDCCH blind Detecting number of times of i search volume in the described S search volume; Perhaps,

A PDCCH search volume of described definite described subscriber equipment comprises:

By the PDCCH candidate number of each search volume in the search volume of following formula 10 or 11 definite described subscriber equipmenies,

Formula 10

Formula 11

M ^(L)Be the PDCCH candidate number of all search volume of subscriber equipment on each polymerization rank L, M ^(L)(i) be the PDCCH candidate number of i search volume in polymerization rank L correspondence,

M _Eff ^(L)(i) be effective PDCCH candidate number of i search volume in the described S search volume, i is a value of selecting.

7. method as claimed in claim 3 is characterized in that, the number when the search volume of described subscriber equipment is K, the PDCCH blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealWhen relevant information is the Y value,

A PDCCH search volume of described definite described subscriber equipment comprises: a described K search volume is divided into K-R search volume and R search volume;

For each search volume in the described K-R search volume, by formula B ^(L)(i)=B _Init ^(L)Determine the PDCCH blind Detecting number of times of each search volume i in the described K-R search volume, wherein B _Init ^(L)For predefined search volume in search volume PDCCH blind Detecting number of times or LTE-R8 (Long Term Evolution, Long Term Evolution) subscriber equipment of polymerization rank L correspondence the PDCCH blind Detecting number of times in polymerization rank L correspondence, B ^(L)(i) be the PDCCH blind Detecting number of times of search volume i in polymerization rank L correspondence; Perhaps, pass through M ^(L)(i)=M _Init ^(L)I=1,2 ... K determines the PDCCH candidate number of each search volume in the described K-R search volume, wherein M _Init ^(L)For predefined search volume in search volume PDCCH candidate number or the LTE-R8 subscriber equipment of polymerization rank L correspondence the PDCCH candidate number in polymerization rank L correspondence, M ^(L)(i) be that search volume i is when the PDCCH candidate number of polymerization rank L correspondence;

For each search volume in the described R search volume, by

Determine the PDCCH blind Detecting number of times of a search volume j among the described R, wherein B _Init ^(L)For predefined search volume in search volume PDCCH blind Detecting number of times or the LTE-R8 subscriber equipment of polymerization rank L correspondence the PDCCH blind Detecting number of times in polymerization rank L correspondence; Perhaps pass through

Determine the PDCCH candidate number of a search volume j in the described R search volume, wherein M _Init ^(L)For predefined search volume in search volume PDCCH candidate number or the LTE-R8 subscriber equipment of polymerization rank L correspondence the PDCCH candidate number in polymerization rank L correspondence, j is a value of selecting.

8. the method for claim 1, it is characterized in that the search volume relevant information of the described described subscriber equipment that obtains from network side is specially: obtain the PDCCH blind Detecting number of times relevant information or the PDCCH candidate number relevant information of a search volume the search volume of described subscriber equipment or a search volume group from network side.

9. method as claimed in claim 8 is characterized in that, the PDCCH blind Detecting number of times relevant information of a search volume or PDCCH candidate number relevant information are β (i) in the search volume of described subscriber equipment, wherein

I=1,2 ... K, B _Init ^(L)For the PDCCH blind Detecting number of times that is set in advance in polymerization rank L correspondence or the LTE-R8 subscriber equipment at the PDCCH blind Detecting number of times of polymerization rank L correspondence, B ^(L)(i) be the PDCCH blind Detecting number of times of search volume i in polymerization rank L correspondence; I=1,2 ... K, M _Init ^(L)Be the PDCCH candidate number that is set in advance in polymerization rank L correspondence or LTE-R8 subscriber equipment PDCCH candidate number, M in polymerization rank L correspondence ^(L)(i) be the PDCCH candidate number of search volume i in polymerization rank L correspondence, i is a value of selecting.

10. method as claimed in claim 8, it is characterized in that, the PDCCH blind Detecting number of times relevant information of a search volume group or PDCCH candidate number relevant information are specially β (g) in the search volume of described subscriber equipment, when the search volume with described subscriber equipment is divided into the Q group; The PDCCH blind Detecting number of times or the PDCCH candidate number of each search volume in each group are identical;

The PDCCH blind Detecting number of times or the PDCCH candidate number of each search volume group are in the search volume of described definite described subscriber equipment

G=1 ... ..Q, B _Init ^(L)For predefined search volume in search volume PDCCH blind Detecting number of times or the LTE-R8 subscriber equipment of polymerization rank L correspondence the PDCCH blind Detecting number of times in polymerization rank L correspondence, B ^(L)(g) be the PDCCH blind Detecting number of times of search volume group g in polymerization rank L correspondence; Perhaps, the PDCCH candidate number of each search volume group is in the search volume of described definite described subscriber equipment G=1 ... ..Q, M _Init ^(L)For the PDCCH blind Detecting number of times that is set in advance in polymerization rank L correspondence or the LTE-R8 subscriber equipment at the PDCCH blind Detecting number of times of polymerization rank L correspondence, M ^(L)(g) be the PDCCH blind Detecting number of times of search volume group g in polymerization rank L correspondence, g is a value of selecting.

11. as the described method of each claim in the claim 1 to 10, it is characterized in that, when the identical corresponding search volume of different Downlink Control Information (DCI, Downlink Control Information) of load size has when overlapping, further comprise:

Determine the recruitment of the search volume of the different DCI correspondence that the load size is identical;

Recruitment according to the search volume of the identical different DCI correspondence of described definite load size is carried out blind Detecting.

12. method as claimed in claim 11 is characterized in that, when DCI i ' is identical with the load size of DCI i, the search volume of DCI i correspondence is A _i, and the search volume of DCI i ' correspondence is A _{I '}, described subscriber equipment determines that the recruitment of the search volume of the different DCI correspondence that the load size is identical is specially: subscriber equipment determines that the recruitment of the search volume of the different DCI that the load size is identical is A _{I '}∩ A _i

13. method as claimed in claim 11 is characterized in that, the recruitment of the search volume of the different DCI correspondence that described definite load size is identical is specially:

Obtain the relevant information of recruitment of the search volume of the identical different DCI correspondence of load size from network side, according to the relevant information of the recruitment of the search volume of the identical different DCI correspondence of the load of obtaining size, determine the recruitment of the search volume of the different DCI correspondence that the load size is identical.

14. method as claimed in claim 13, it is characterized in that the relevant information of the recruitment of the described search volume that obtains the identical different DCI correspondence of load size from network side is specially: the relevant information of recruitment of obtaining the search volume of the identical different DCI correspondence of load size from network side is χ 0=＜χ＜=1; The relevant information of the recruitment of the search volume of the different DCI correspondence that the load size that described basis is obtained is identical, determine that the recruitment of the search volume of the different DCI correspondence that the load size is identical is specially:

According to the relevant information χ of the recruitment of the search volume of the identical different DCI correspondence of the load of obtaining size, determine the recruitment χ (A of the search volume of the different DCI correspondence that the load size is identical _{I '}∩ A _i).

15. a distribution method, the subscriber equipment at receiving ability with at least two member carriers or transmitting capacity is characterized in that, comprising:

Determine the search volume relevant information of described subscriber equipment and it be notified to described subscriber equipment that this information belongs to one of search volume of at least two different sizes;

According to the search volume relevant information of described subscriber equipment, determine a search volume of described subscriber equipment;

According to a search volume of described definite described subscriber equipment, distribute the Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel) of described subscriber equipment.

16. method as claimed in claim 15 is characterized in that, the relevant information of the search volume of described definite described subscriber equipment is specially: the PDCCH blind Detecting number of times B that determines the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information; Perhaps,

Describedly determine that the search volume relevant information of described subscriber equipment is specially: PDCCH blind Detecting number of times relevant information or the PDCCH candidate number relevant information of determining a search volume in the search volume of described subscriber equipment.

17. method as claimed in claim 16 is characterized in that, the PDCCH blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is the α value, wherein

B _MAXPDCCH blind Detecting number of times for the UE capability support;

0＜α＜=1, wherein M _ALLThe PDCCH candidate number that UE capability is supported;

The PDCCH blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is the Y value, wherein,

$0<\frac{Y}{N}<=1,$ B _MAXMaximum PDCCH blind Detecting number of times for the UE capability support;

$0<\frac{Y}{N}<=1,$ M wherein _ALLThe PDCCH candidate number that UE capability is supported; Y, N are integers, N be the UE capability PDSCH that can support and or the member carrier number of PUSCH; Perhaps,

The PDCCH blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is PDCCH blind Detecting number of times grade or PDCCH candidate number grade, the concrete PDCCH blind Detecting number of times or the PDCCH candidate number of described PDCCH blind Detecting number of times grade or PDCCH candidate number grade correspondence.

18. method as claimed in claim 16 is characterized in that, the PDCCH blind Detecting number of times relevant information of a search volume or PDCCH candidate number relevant information are β (i) in the search volume of described subscriber equipment, wherein,

I=1,2 ... K, B _Init ^(L)Be the PDCCH blind Detecting number of times that is set in advance in polymerization rank L correspondence or LTE-R8 subscriber equipment PDCCH blind Detecting number of times, B in polymerization rank L correspondence ^(L)(i) be the PDCCH blind Detecting number of times of search volume i in polymerization rank L correspondence; Perhaps

I=1,2 ... K, M _Init ^(L)For the PDCCH candidate number that is set in advance in polymerization rank L correspondence or the LTE-R8 subscriber equipment at the PDCCH candidate number of polymerization rank L correspondence, M ^(L)(i) be the PDCCH candidate number of search volume i in polymerization rank L correspondence, i is a value of selecting.

19. as the described method of each claim of claim 15 to 18, it is characterized in that, further comprise:

Determine the recruitment of the search volume that the identical different Downlink Control Information (DCI, Downlink Control Information) of load size is corresponding;

The recruitment size relevant information of the search volume of the different DCI correspondence that the load size of notifying described subscriber equipment to determine is identical.

20. a subscriber equipment, described subscriber equipment have the receiving ability or the transmitting capacity of at least two member carriers, it is characterized in that, comprising:

Acquiring unit, be used to obtain the Physical Downlink Control Channel (PDCCH of described subscriber equipment, Physical DownlinkControl Channel) search volume relevant information, one of search volume of at least two different sizes of PDCCH search volume relevant information indication of described subscriber equipment;

Processing unit one is used for the PDCCH search volume relevant information of the described subscriber equipment that obtains according to acquiring unit, determines a PDCCH search volume of described subscriber equipment;

Detecting unit, blind Detecting is carried out in a search volume that is used for the described subscriber equipment determined according to processing unit one.

21. subscriber equipment as claimed in claim 20, it is characterized in that, described acquiring unit specifically is used for obtaining any information of PDCCH search volume relevant information of subscriber equipment as described below or the combination of information: the PDCCH blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information; The PDCCH blind Detecting number of times relevant information of a search volume or PDCCH candidate number relevant information in the search volume of described subscriber equipment;

Described processing unit one specifically is used for the PDCCH blind Detecting number of times B of the search volume of the described subscriber equipment that obtains according to acquiring unit ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is determined a PDCCH search volume of described subscriber equipment; Perhaps the PDCCH blind Detecting number of times relevant information or the PDCCH candidate number relevant information of a search volume in the search volume of the described subscriber equipment that obtains according to acquiring unit are determined a PDCCH search volume of described subscriber equipment.

22. subscriber equipment as claimed in claim 20 is characterized in that, described processing unit one, the recruitment of the search volume that also is used for determining that the identical different Downlink Control Information (DCI, Downlink Control Information) of load size is corresponding; Described detecting unit also is used for carrying out blind Detecting according to the recruitment of the search volume of the identical DCI form correspondence of described definite load size.

23. a communicator is used for and has the receiving ability of at least two member carriers or the subscriber equipment of transmitting capacity communicates, and it is characterized in that, comprising:

Processing unit two, be used for determining the search volume relevant information of described subscriber equipment, Physical Downlink Control Channel (the PDCCH of described subscriber equipment, Physical Downlink Control Channel) the search volume relevant information is indicated one of search volumes of at least two different sizes, also is used for determining according to the search volume relevant information of described subscriber equipment the search volume of described subscriber equipment;

Transmitting element is used for the search volume relevant information of the described subscriber equipment notifier processes unit two determined;

Allocation units are used for the search volume according to described definite described subscriber equipment, distribute the PDCCH of described subscriber equipment.

24. device as claimed in claim 23 is characterized in that, described processing unit two specifically is used for the PDCCH blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information, also be used for according to described subscriber equipment the PDCCH blind Detecting number of times B of search volume ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information is determined the search volume of described subscriber equipment; Perhaps, be used for determining the PDCCH blind Detecting number of times relevant information or the PDCCH candidate number relevant information of a search volume, search volume of described subscriber equipment, also be used for according to the PDCCH blind Detecting number of times relevant information of the search volume, search volume of described subscriber equipment or the search volume that PDCCH candidate number relevant information is determined described subscriber equipment;

Described transmitting element specifically is used for sending any information of processing unit two determined following information or the combination of information: the PDCCH blind Detecting number of times B of the search volume of described subscriber equipment ^Real _MAXRelevant information or PDCCH candidate number M _ALL ^RealRelevant information; The PDCCH blind Detecting number of times relevant information of a search volume or PDCCH candidate number relevant information in the search volume of described subscriber equipment.

25. device as claimed in claim 23 is characterized in that, described processing unit two, the recruitment of the search volume that also is used for determining that the identical different Downlink Control Information (DCI, Downlink Control Information) of load size is corresponding; Described transmitting element also is used to send the recruitment of the search volume of the identical different DCI correspondence of described processing unit two determined loads sizes.

Images