CN105188140A

CN105188140A - Configuration method for control channel, and receiving method, device and system

Info

Publication number: CN105188140A
Application number: CN201410256663.XA
Authority: CN
Inventors: 郭森宝; 左志松; 张峻峰
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2014-06-10
Filing date: 2014-06-10
Publication date: 2015-12-23
Also published as: WO2015188506A1

Abstract

The invention discloses a configuration method for a control channel, and a receiving method, device and system. The method comprises the steps that a base station carries out the grouping of serving cells for terminal detection, and enables the serving cells to be divided into at least two CGs (cell groups), wherein one cell group is an MCG (main cell group), and one or more other cell groups are SCGx (x is integer greater than zero); and the base station predefines or configures a control channel information type and/or a downlink public control information format of the control channel in a terminal detection public searching space, wherein the control channel information type and/or the downlink public control information format are/is needed by downlink public control information. The method solves a problem that the introduction of double links causes the larger number of times of blind detection of the terminal on the basis of CA in related technologies, reduces the energy consumption of the terminal, and also can guarantee that the maximum number of detection times of the control channel of the terminal does not exceed the predefined number of detection times of the terminal under the condition of not affecting the average throughput capacity and real-time business dispatching of the terminal.

Description

The collocation method of control channel, method of reseptance, Apparatus and system

Technical field

The present invention relates to the communications field, in particular to a kind of collocation method, method of reseptance, Apparatus and system of control channel.

Background technology

Following three kinds of downlink physical control channels are defined: physical down control format indicating channel (PCFICH in Long Term Evolution (LTE) system, PhysicalControlFormatIndicatorChannel), physical hybrid automatic repeat request indicator channel (PHICH, PhysicalHybridAutomaticRetransmissionRequestIndicatorCha nnel), Physical Downlink Control Channel (PDCCH, PhysicalDownlinkControlChannel).

PDCCH is used for bearing downlink common control information (DCI, DownlinkControlInformation), comprising: uplink and downlink schedule information, and uplink power control information.The form (DCIformat) of DCI is divided into following several: DCIformat0, DCIformat1, DCIformat1A, DCIformat1B, DCIformat1C, DCIformat1D, DCIformat2, DCIformat2A, DCIformat3 and DCIformat3A etc.Wherein:

DCIformat0 is used to indicate the scheduling of Physical Uplink Shared Channel (PUSCH, PhysicalUplinkSharedChannel);

DCIformat1, DCIformat1A, DCIformat1B, DCIformat1C, DCIformat1D are used for the different mode of Physical Downlink Shared Channel (PDSCH, a PhysicalDownlinkSharedChannel) code word scheduling;

DCIformat2, DCIformat2A, DCIformat2B are used for the different mode of space division multiplexing;

DCIformat3, DCIformat3A are used for the different mode of the power control instruction of Physical Uplink Control Channel (PUCCH, PhysicalUplinkControlChannel) and PUSCH.

The physical resource of PDCCH transmission is with control channel element (CCE, ControlChannelElement) be unit, the size of a CCE is 9 resource element group (REG, ResourceElementGroup), i.e. 36 RE, a PDCCH may take 1,2,4 or 8 CCE.For these the four kinds of PDCCH sizes taking 1,2,4,8 CCE, adopt tree-shaped polymerization (Aggregation), the PDCCH namely taking 1 CCE can from any CCE position; Take the PDCCH of 2 CCE from even number CCE position; The CCE position of the integral multiple of the PDCCH taking 4 CCE from 4; The CCE position of the integral multiple of the PDCCH taking 8 CCE from 8.

Each polymerization rank (Aggregationlevel) defines a search volume (Searchspace), comprises the search volume of public (common) and the search volume of UE proprietary (UE-Specific).OFDM (OFDM, OrthogonalFrequencyDivisionMultiplexing) symbolic number shared by the controlled area that the CCE number of whole search volume is indicated by PCFICH in each descending sub frame and the group number of PHICH are determined.UE carries out blind Detecting by the DCIformat of residing transmission mode to all possible PDCCH code check in search volume.

In non-competing random access procedure, base station sends the information such as preamble index (PreambleIndex) and Physical Random Access Channel mask index (PRACHMaskIndex) by DCIformat1A.If UE is set to random access radio network temporary mark (RA-RNTI by high level, RandomAccessRadioNetworkTemporaryIdentifier) cyclic redundancy check (CRC) (CRC of scrambling, CyclicalRedundancyCheck) carry out PDCCH decoding, then UE should according to the respective sets incompatible decoding PDCCH and all relevant PDSCH of definition in following table 1.

Table 1

If UE is set to Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (C-RNTI by high level, CellRadioNetworkTemporaryIdentifier) CRC of scrambling carries out PDCCH decoding, then UE should according to the respective sets incompatible decoding PDCCH and all relevant PDSCH of definition in following table 2.

Table 2

LTE defines PDCCH (Physicaldownlinkcontrolchannel, Physical Downlink Control Channel) carry dispatching distribution and other control information, each PDCCH is by several CCE (ControlChannelElement, control channel unit) composition, the CCE number of each subframe is determined by the quantity of PDCCH and downlink bandwidth.

UE obtains PDCCH by blind Detecting in search volume, and search volume is divided into public search space and UE dedicated search space.Public search space refers to the region that all UE can search, and what this space was carried is community Proprietary Information.Dedicated search space is the spatial dimension that single UE can search, and the dedicated search space of multiple UE is likely overlapping, and just general initial searching position is different.Before blind check, UE mode of operation and the cyclic redundancy check (CRC) (CyclicRedundancyCheck for PDCCH is notified by high-level signaling, CRC) Radio Network Temporary Identifier (RadioNetworkTemporaryIdentity, the RNTI) type of scrambling.

Search volume be polymerized rank L and candidate PDCCH quantity M ^(L)between relation in the PDCCH Candidate Set of table 3.The CCE number that polymerization grade and PDCCH take.When blind Detecting is carried out in user's dedicated search space, first subscriber equipment calculates blind check initial position Y according to user ID (UEID) and subframe numbers etc. _k, then detect in search volume, until the PDCCH giving oneself detected.

Table 3

The polymerization rank of corresponding relation in table 4 of polymerization rank and the relative position of PDCCH first control channel unit in user's dedicated search space and the corresponding relation of first CCE position.The relative position of PDCCH first control channel unit in user's dedicated search space refers to first CCE index nCCE that PDCCH takies and blind check initial position Y _krelative position, can represent with nCCE, offset, nCCE, offset=nCCE-Y _k, the span of nCCE, offset is 0 ~ 6,8,10.

Table 4

Polymerization rank	The relative position of first CCE in user's dedicated search space
		L＝1	nCCE,offset＝0/1/2/3/4/5
L＝2	nCCE,offset＝0/2/4/6/8/10

L＝3	nCCE,offset＝0/4
		L＝4	nCCE,offset＝0/8

In the random access procedure, terminal needs transmission Preamble to base station side, base station side needed to detect Preamble within the time and frequency domain unit of configuration, when base station detects that Preamble can send accidental access response information Msg2 to terminal in official hour window, by detecting Msg2, terminal judges whether base station detects oneself and send Preamble, if the Preamble of oneself detected, if based on the Stochastic accessing competed, terminal also needs to send Msg3 and solves competition, terminal needs the accidental access response information Msg4 receiving base station feedback after sending Msg3, thus judge whether that the Msg3 of oneself is received by base station, if the correlated identities information of oneself detected, thus complete contention resolved process.

In the system of senior LTE (LTE-Advance), because LTE-Advanced network needs to access LTE user, therefore its operational frequency bands needs to cover current LTE frequency band.And on current LTE frequency band, there is not the spectral bandwidth of assignable continuous 100MHz, so LTE-Advanced needs a technical problem of solution exactly: several distribution continuous component carrier (frequency spectrum) (ComponentCarrier) is on different frequency bands adopted carrier aggregation (CA, CarrierAggregation) technology aggregation gets up, and forms the operable 100MHz bandwidth of LTE-Advanced.Namely for the frequency spectrum after gathering, be divided into n component carrier (frequency spectrum), and the frequency spectrum in each component carrier (frequency spectrum) is continuous print.

In the related, under CA scene, if there is polymerization in multiple component carrier, one of them component carrier is then needed to be defined as principal component carrier wave (PCC, PrimaryComponentCarrier), remaining component carrier is defined as auxiliary component carrier (SCC, SecondaryComponentCarrier).In addition, component carrier can also be referred to as Serving cell (ServingCell), and principal component carrier wave can be referred to as main Serving cell (Pcell, PrimaryServingCell), auxiliary component carrier can be referred to as auxiliary serving cell (Scell, SecondaryServingCell).

Consider to introduce double-strand connection technology in the R12 stage, double-strand connection technology and the maximum difference of CA are that two eNB that double-strand connects have employed imperfect backhaul and are connected, the scheduling independence between two nodes.Owing to introducing independent scheduling, terminal needs the control channel detected on two eNB respectively on one or more carrier wave.Terminal needs on SeNB, detect CSS space in addition, thus obtains Stochastic accessing Msg2 information corresponding to SeNB.Therefore, if according to the mode of correlation technique, the basis of CA is introduced double-strand and connects blind check number of times by increasing terminal.

Connecing for introducing double-strand in correlation technique on the basis of CA the problem causing the busy inspection number of times of terminal more, not yet proposing effective solution at present.

Summary of the invention

Connecing for introducing double-strand in correlation technique on the basis of CA the problem causing the busy inspection number of times of terminal more, the invention provides a kind of collocation method of control channel, method of reseptance, Apparatus and system, at least to solve the problem.

According to an aspect of the present invention, provide a kind of collocation method of control channel, comprise: divide into groups to the Serving cell that terminal detects in base station, described Serving cell is divided at least two cell set (CG), wherein there is a main plot group (MCG), and other cell set (SCGx) one or more, x be greater than 0 integer; Described base station is for the downwards public control information form (DCIFormat) of each grouping predefine or the control channel information type configured required for downwards public control information that described terminal detects in public search space and/or control channel respectively.

Preferably, described base station comprises for each grouping downwards public control information form that terminal described in predefine detects in public search space required for downwards public control information control channel information type and/or control channel respectively: terminal described in the predefine of described base station only detects described downwards public control information at the public search space of main Serving cell corresponding to each CG, and sends corresponding control information to described terminal according to predefined rule.

Preferably, the control information that described base station sends correspondence to described terminal according to predefined rule comprises: described base station sends the downwards public control information of predefined type only in the subframe of SCGx described terminal, the downwards public control information of described predefined type comprises following control information one of at least: accidental access response control information, contention resolved control information, ascending control channel power control information and reverse link traffic channel power control information, wherein, described base station only utilizes DCIFormat1A to send described downwards public control information.

Preferably, the control information that described base station sends correspondence to described terminal according to predefined rule comprises: described base station sends the downwards public control information of predefined type only in the subframe of SCGx described terminal, the downwards public control information of described predefined type comprises following control information one of at least: accidental access response control information, the control information of TDD sub-frame allocation, wherein, described base station only utilizes DCIFormat1C to send described downwards public control information.

Preferably, described base station comprises for the downwards public control information form of each grouping predefine or the control channel information type configured required for downwards public control information that described terminal detects in public search space and/or control channel respectively: described base station only sends the DCIFormat of predefine or high-level signaling configuration to described terminal in the default subframe of SCGx, wherein, described DCIFormat is used to indicate the downwards public control information type that described terminal detects, described downwards public control information type comprises following control information one of at least: accidental access response control information, contention resolved control information, ascending control channel power control information, reverse link traffic channel power control information and the control information of TDD sub-frame allocation.

Preferably, the DCIFormat that described base station only sends predefine or high-level signaling configuration to described terminal in the default subframe of SCGx comprises: when being configured to send accidental access response control information and the control information of TDD sub-frame allocation in described default subframe, described base station adopts form DCIFormat1C to send described downwards public control information, and does not send ascending control channel power control information and reverse link traffic channel power control information in described default subframe; Or, when being configured to send accidental access response control information and multicast and broadcast control information in described default subframe, described base station adopts form DCIFormat1C to send described downwards public control information, and does not send ascending control channel power control information and reverse link traffic channel power control information in described default subframe; Or, when being configured to send accidental access response control information in described default subframe, described base station adopts form DCIFormat1C to send described downwards public control information, and does not send ascending control channel power control information and reverse link traffic channel power control information in described default subframe; Or, when be configured to send in described default subframe accidental access response control information, ascending control channel power control information or reverse link traffic channel power control information time, described base station adopts form DCIFormat1A to send described downwards public control information, and does not send the control information of TDD sub-frame allocation and multicast and broadcast control information in described default subframe; Or, when being configured to send contention resolved control information and ascending control channel power control information in described default subframe, described base station adopts form DCIFormat1A to send described downwards public control information, and does not send the control information of TDD sub-frame allocation and multicast and broadcast control information in described default subframe; Or, when being configured to send contention resolved control information and reverse link traffic channel power control information in described default subframe, described base station adopts form DCIFormat1A to send described downwards public control information, and does not send the control information of TDD sub-frame allocation and multicast and broadcast control information in described default subframe; Or, when being configured to send contention resolved control information and reverse link traffic channel power control information in described default subframe, described base station adopts form DCIFormat1A to send described downwards public control information, and does not send the control information of TDD sub-frame allocation and multicast and broadcast control information in described default subframe.

Preferably, to give according to predefined rule in described base station before described terminal sends corresponding control information, also comprise: the Serving cell in described SCGx is that double-strand connects terminal independent allocation PRACHPreamble sequence and/or PRACH time domain and/or frequency domain resource; Or, Serving cell independent allocation in described SCGx one group of PRACHPreamble sequence and/or PRACH time domain and/or frequency domain resource, the cell receiver in described SCGx is to the PRACH in the group of described PRACHPreamble sequence and/or PRACH time domain and/or frequency domain resource.

Preferably, terminal described in the predefine of described base station only detects described downwards public control information at the public search space of main Serving cell corresponding to each CG and comprises: described base station configures one or more subframe bunch of described terminal by high-level signaling; Described base station configures described terminal and detect the control channel information type of the Common Control Channel of public search space and/or the downwards public control information form of control channel in described subframe bunch.

According to a further aspect in the invention, provide a kind of method of reseptance of control channel, comprise: terminal is divided into groups to the Serving cell that described terminal detects according to serving cell types, described Serving cell is divided at least two cell set (CG), wherein there is a main plot group (MCG), and other cell set (SCGx) one or more, x be greater than 0 integer; Described terminal pins is to each grouping predefine or obtain the downwards public control information form (DCIFormat) of control channel information type required for downwards public control information that described terminal detects in public search space and/or control channel by receiving high-level signaling respectively.

Preferably, described terminal pins to each grouping respectively predefine or the downwards public control information form that obtains control channel information type required for downwards public control information that described terminal detects in public search space and/or control channel by receiving high-level signaling comprise: described terminal only detects described downwards public control information at the public search space of main Serving cell corresponding to each CG.

Preferably, described terminal only detects described downwards public control information at the public search space of main Serving cell corresponding to each CG and comprises: described terminal only detects the downwards public control information of predefined type in the subframe of SCGx, the downwards public control information of described predefined type comprises following control information one of at least: accidental access response control information, contention resolved control information, ascending control channel power control information and reverse link traffic channel power control information, wherein, described terminal only utilizes DCIFormat1A to detect described downwards public control information.

Preferably, described terminal only detects described downwards public control information at the public search space of main Serving cell corresponding to each CG and comprises: described terminal only detects the described downwards public control information of predefined type in the subframe of SCGx, the downwards public control information of described predefined type comprises following control information one of at least: accidental access response control information, the control information of TDD sub-frame allocation, wherein, described terminal only utilizes DCIFormat1C to detect described downwards public control information.

Preferably, described terminal only detects described downwards public control information at the public search space of main Serving cell corresponding to each CG and comprises: described terminal only detects downwards public control information type according to the DCIFormat of predefine or high-level signaling configuration in the default subframe of SCGx, and described downwards public control information type comprises following control information one of at least: accidental access response control information, contention resolved control information, ascending control channel power control information, reverse link traffic channel power control information and the control information of TDD sub-frame allocation.

Preferably, described terminal only comprises according to the DCIFormat detection downwards public control information type of predefine or high-level signaling configuration in the default subframe of SCGx: when terminal configuration for detecting accidental access response control information and the control information of TDD sub-frame allocation in default subframe, adopt form DCIFormat1C to detect described downwards public control information, and do not detect ascending control channel power control information and reverse link traffic channel power control information in the default subframe of correspondence; Or, when terminal configuration for detecting accidental access response control information and multicast and broadcast control information in default subframe, adopt form DCIFormat1C to detect described downwards public control information, and do not detect ascending control channel power control information and reverse link traffic channel power control information in the default subframe of correspondence; Or, when terminal configuration for detecting accidental access response control information in default subframe, adopt form DCIFormat1C to detect described downwards public control information, and do not detect ascending control channel power control information and reverse link traffic channel power control information in the default subframe of correspondence; Or, when terminal configuration for detect in default subframe accidental access response control information, ascending control channel power control information or reverse link traffic channel power control information time, adopt form DCIFormat1A to detect described downwards public control information, and in the default subframe of correspondence, do not detect the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal; Or, when terminal configuration for detecting contention resolved control information and ascending control channel power control information in default subframe, adopt form DCIFormat1A to detect described downwards public control information, and in the default subframe of correspondence, do not detect the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal; Or, when terminal configuration for detecting contention resolved control information and reverse link traffic channel power control information in default subframe, adopt form DCIFormat1A to detect described downwards public control information, and in the subframe of correspondence, do not detect the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal; Or, when terminal configuration for detecting contention resolved control information and reverse link traffic channel power control information in default subframe, adopt form DCIFormat1A to detect described downwards public control information, and in the default subframe of correspondence, do not detect the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal.

Preferably, in described terminal only before the public search space of main Serving cell corresponding to each CG detects described downwards public control information, also comprise: described terminal obtains one or more subframe bunch according to the high-level signaling of the base station configuration received;

Described terminal independently determines the control channel type of Common Control Channel and/or the downwards public control information form of control channel that detect public search space in described subframe bunch.

According to a further aspect in the invention, additionally provide a kind of inking device of control channel, be arranged in base station, comprise: the first grouping module, divide into groups in Serving cell for detecting terminal, described Serving cell is divided at least two cell set CG, wherein there is a main plot group MCG, and other cell set SCGx one or more, x be greater than 0 integer; Configuration module, for for each grouping predefine or configure described terminal and detect the control channel information type of downwards public control information in public search space and/or the downwards public control information form DCIFormat of control channel respectively.

Preferably, described configuration module comprises: predefine unit, only detect described downwards public control information at the public search space of main Serving cell corresponding to each CG for terminal described in predefine, and send corresponding control information to described terminal according to predefined rule.

In accordance with a further aspect of the present invention, additionally provide a kind of receiving system of control channel, be arranged in terminal, comprise: the second grouping module, for dividing into groups to the Serving cell that described terminal detects according to serving cell types, described Serving cell being divided at least two cell set CG, wherein there is a main plot group MCG, and other cell set SCGx one or more, x be greater than 0 integer; Acquisition module, for for each grouping predefine or obtain described terminal detect the control channel information type of downwards public control information in public search space and/or the downwards public control information form DCIFormat of control channel by receiving high-level signaling respectively.

Preferably, described acquisition module comprises: detecting unit, for only detecting described downwards public control information at the public search space of main Serving cell corresponding to each CG.

According to also one side of the present invention, provide a kind of configuration-system of control channel, comprise the inking device of above-mentioned control channel, also comprise the receiving system of above-mentioned control channel.

By the present invention, adopt base station to divide into groups to the Serving cell that terminal detects, described Serving cell be divided at least two cell set CG, wherein an existence main plot group MCG, and other cell set SCGx one or more, x be greater than 0 integer; Described base station is for the mode of each grouping downwards public control information form of predefine or the control channel information type configured required for downwards public control information that described terminal detects in public search space and/or control channel respectively, solve in correlation technique and on the basis of CA, introduce double-strand connect the problem causing the busy inspection number of times of terminal more, reduce terminal energy consumption, simultaneously when not affecting terminal average throughput and real time scheduling of traffic, can also ensure that the number of times of the maximum detection control channel of terminal is no more than the predefine detection number of times of terminal.

Accompanying drawing explanation

Fig. 1 is the flow chart of the collocation method of control channel according to the embodiment of the present invention;

Fig. 2 is the flow chart of the method for reseptance of control channel according to the embodiment of the present invention;

Fig. 3 is the structured flowchart of the inking device of control channel according to the embodiment of the present invention;

Fig. 4 is the structured flowchart of the receiving system of control channel according to the embodiment of the present invention;

Fig. 5 is the structured flowchart of the configuration-system of control channel according to the embodiment of the present invention;

Fig. 6 is a system configuration scene schematic diagram according to the preferred embodiment of the invention.

Embodiment

Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.

In an embodiment, TAG is time advance group, and identical or close one or more Serving cell of up timing is positioned in same TAG.Wherein, community also can be called carrier wave, and community is Terminal Service on independently carrier wave.Connect scene in double-strand and there are at least two base stations (eNB), be called MeNB and SeNB, MeNB is main serving BS, SeNB is non-master serving BS (or being called auxiliary serving BS), and main serving BS can be responsible for some system messages and some high-rise configuration signals of sending SeNB to terminal.MeNB and SeNB can realize independently MAC layer scheduling.

Multiple Serving cell (carrier wave) can be configured under MeNB, one of them is the main Serving cell of MeNB, be called MPcell, the up PUCCH of all Serving cells under MeNB, only transmit on the carrier wave that MPcell is corresponding, and terminal only detects system information and the beep-page message of MeNB on MPcell.

Multiple Serving cell (carrier wave) can be configured under SeNB, one of them is the main Serving cell of SeNB, be called SPcell, the up PUCCH of all Serving cells under SeNB, only transmit on the carrier wave that SPcell is corresponding, and terminal only detects uplink random access response message (Msg2) corresponding to SeNB small area (carrier wave) on SPcell.

Wherein, SeNB is for expanding capacity and avoiding terminal frequently to switch thus save the signaling consumption of terminal, the spectrum efficiency that the system that adds is average.

In the present embodiment, provide a kind of collocation method of control channel, Fig. 1 is the flow chart of the collocation method of control channel according to the embodiment of the present invention, and as shown in Figure 1, the method comprises the steps:

Step S102, divide into groups to the Serving cell that terminal detects in base station, described Serving cell is divided at least two cell set CG, wherein there is a main plot group MCG, and other cell set SCGx one or more, x be greater than 0 integer;

Step S104, described base station is for the downwards public control information form (DCIFormat) of each grouping predefine or the control channel information type configured required for downwards public control information that described terminal detects in public search space and/or control channel respectively.

The present embodiment passes through above-mentioned steps, base station is divide into groups in the Serving cell that terminal detects, and the downwards public control information form to each grouping predefine or the control channel information type be configured with required for downwards public control information that this terminal detects in public search space and/or control channel respectively, thus decrease the downwards public control information that terminal carries out detecting, solve in correlation technique and on the basis of CA, introduce double-strand connect the problem causing the busy inspection number of times of terminal more, reduce terminal energy consumption, simultaneously when not affecting terminal average throughput and real time scheduling of traffic, can also ensure that the number of times of the maximum detection control channel of terminal is no more than the predefine detection number of times of terminal.

Preferably, the DCIFormat that described base station only sends predefine or high-level signaling configuration to described terminal in the default subframe of SCGx comprises: when being configured to send accidental access response control information and the control information of TDD sub-frame allocation in described default subframe, described base station adopts form DCIFormat1C to send described downwards public control information, and does not send ascending control channel power control information and reverse link traffic channel power control information in described default subframe; Or,

When being configured to send accidental access response control information and multicast and broadcast control information in described default subframe, described base station adopts form DCIFormat1C to send described downwards public control information, and does not send ascending control channel power control information and reverse link traffic channel power control information in described default subframe; Or,

When being configured to send accidental access response control information in described default subframe, described base station adopts form DCIFormat1C to send described downwards public control information, and does not send ascending control channel power control information and reverse link traffic channel power control information in described default subframe; Or,

When be configured to send in described default subframe accidental access response control information, ascending control channel power control information or reverse link traffic channel power control information time, described base station adopts form DCIFormat1A to send described downwards public control information, and does not send the control information of TDD sub-frame allocation and multicast and broadcast control information in described default subframe; Or,

When being configured to send contention resolved control information and ascending control channel power control information in described default subframe, described base station adopts form DCIFormat1A to send described downwards public control information, and does not send the control information of TDD sub-frame allocation and multicast and broadcast control information in described default subframe; Or,

When being configured to send contention resolved control information and reverse link traffic channel power control information in described default subframe, described base station adopts form DCIFormat1A to send described downwards public control information, and does not send the control information of TDD sub-frame allocation and multicast and broadcast control information in described default subframe; Or,

When being configured to send contention resolved control information and reverse link traffic channel power control information in described default subframe, described base station adopts form DCIFormat1A to send described downwards public control information, and does not send the control information of TDD sub-frame allocation and multicast and broadcast control information in described default subframe.

In the present embodiment, additionally provide a kind of method of reseptance of control channel, Fig. 2 is the flow chart of the method for reseptance of control channel according to the embodiment of the present invention, and as shown in Figure 2, the method comprises the steps:

Step S202, terminal is divided into groups to the Serving cell that described terminal detects according to serving cell types, and described Serving cell is divided at least two cell set CG, wherein there is a main plot group MCG, and other cell set SCGx one or more, x be greater than 0 integer;

Step S204, described terminal pins is to each grouping predefine or obtain the downwards public control information form (DCIFormat) of control channel information type required for downwards public control information that described terminal detects in public search space and/or control channel by receiving high-level signaling respectively.

The present embodiment passes through above-mentioned steps, terminal is divided into groups to the Serving cell that will detect according to serving cell types, and the downwards public control information form of the control channel information type required for downwards public control information each grouping obtained respectively in this terminal detection public search space and/or control channel, thus decrease the downwards public control information that terminal carries out detecting, solve in correlation technique and on the basis of CA, introduce double-strand connect the problem causing the busy inspection number of times of terminal more, reduce terminal energy consumption, simultaneously when not affecting terminal average throughput and real time scheduling of traffic, can also ensure that the number of times of the maximum detection control channel of terminal is no more than the predefine detection number of times of terminal.

Preferably, described terminal only comprises according to the DCIFormat detection downwards public control information type of predefine or high-level signaling configuration in the default subframe of SCGx: when terminal configuration for detecting accidental access response control information and the control information of TDD sub-frame allocation in default subframe, adopt form DCIFormat1C to detect described downwards public control information, and do not detect ascending control channel power control information and reverse link traffic channel power control information in the default subframe of correspondence; Or,

When terminal configuration for detecting accidental access response control information and multicast and broadcast control information in default subframe, adopt form DCIFormat1C to detect described downwards public control information, and do not detect ascending control channel power control information and reverse link traffic channel power control information in the default subframe of correspondence; Or,

When terminal configuration for detecting accidental access response control information in default subframe, adopt form DCIFormat1C to detect described downwards public control information, and do not detect ascending control channel power control information and reverse link traffic channel power control information in the default subframe of correspondence; Or,

When terminal configuration for detect in default subframe accidental access response control information, ascending control channel power control information or reverse link traffic channel power control information time, adopt form DCIFormat1A to detect described downwards public control information, and in the default subframe of correspondence, do not detect the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal; Or,

When terminal configuration for detecting contention resolved control information and ascending control channel power control information in default subframe, adopt form DCIFormat1A to detect described downwards public control information, and in the default subframe of correspondence, do not detect the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal; Or,

When terminal configuration for detecting contention resolved control information and reverse link traffic channel power control information in default subframe, adopt form DCIFormat1A to detect described downwards public control information, and in the subframe of correspondence, do not detect the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal; Or,

When terminal configuration for detecting contention resolved control information and reverse link traffic channel power control information in default subframe, adopt form DCIFormat1A to detect described downwards public control information, and in the default subframe of correspondence, do not detect the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal.

Preferably, in described terminal only before the public search space of main Serving cell corresponding to each CG detects described downwards public control information, also comprise: described terminal obtains one or more subframe bunch according to the high-level signaling of the base station configuration received; Described terminal independently determines the control channel type of Common Control Channel and/or the downwards public control information form of control channel that detect public search space in described subframe bunch.

Corresponding to the collocation method of above-mentioned control channel, additionally provide a kind of inking device of control channel in the present embodiment, be arranged in base station, Fig. 3 is the structured flowchart of the inking device of control channel according to the embodiment of the present invention, as shown in Figure 3, this device comprises the first grouping module 32 and configuration module 34, is described in detail below to modules:

First grouping module 32, divides into groups for the Serving cell detected terminal, and described Serving cell is divided at least two cell set CG, wherein there is a main plot group MCG, and other cell set SCGx one or more, x be greater than 0 integer; Configuration module 34, be connected with the first grouping module 32, for for each grouping predefine or configure described terminal and detect the control channel information type of downwards public control information in public search space and/or the downwards public control information form of control channel respectively.

Preferably, described configuration module 34 can comprise: predefine unit 342, only detect described downwards public control information at the public search space of main Serving cell corresponding to each CG for terminal described in predefine, and send corresponding control information to described terminal according to predefined rule.

Corresponding to the method for reseptance of above-mentioned control channel, additionally provide a kind of receiving system of control channel in the present embodiment, be arranged in terminal, Fig. 4 is the structured flowchart of the receiving system of control channel according to the embodiment of the present invention, as shown in Figure 4, this device comprises the second grouping module 42 and acquisition module 44, is described in detail below to modules:

Second grouping module 42, for dividing into groups to the Serving cell that described terminal detects according to serving cell types, described Serving cell being divided at least two cell set CG, wherein there is a main plot group MCG, and other cell set SCGx one or more, x be greater than 0 integer; Acquisition module 44, be connected with the second grouping module 42, for for each grouping predefine or obtain described terminal detect the control channel information type of downwards public control information in public search space and/or the downwards public control information form DCIFormat of control channel by receiving high-level signaling respectively.

Preferably, described acquisition module 44 can comprise: detecting unit 442, for only detecting described downwards public control information at the public search space of main Serving cell corresponding to each CG.

In the present embodiment, additionally provide a kind of configuration-system of control channel, Fig. 5 is the structured flowchart of the configuration-system of control channel according to the embodiment of the present invention, as shown in Figure 5, this system comprises the inking device 30 of above-mentioned control channel as shown in Figure 3, also comprises the receiving system 40 of above-mentioned control channel as shown in Figure 4.

Respectively base station side is described the method that the control channel that terminal detects is configured and end side control channel detects below.

A collocation method for control channel, comprising: divide into groups to the Serving cell that terminal detects according to serving cell types in base station; Described base station is for each grouping respectively predefine or configurating terminal downwards public control information form (DCIFormat) of detecting in public search space required for downwards public control information detection control channel type and/or control channel.At least comprise two cell set CG in described cell group, wherein, only there is a cell set is MCG (main plot group), other cell set be divided into for SCGx (x be greater than 0 integer).

Preferably, in each CG group, terminal described in the predefine of base station only detects described downwards public control information at the public search space of the main Serving cell of corresponding CG.And send corresponding control information to described terminal according to predefine rule.

Preferably, described base station only sends downwards public control information type described in predefine to described terminal in the subframe of SCGx, described downwards public control information type comprises accidental access response control information (control information of RA-RNTI scrambling), contention resolved control information (control information of TempC-RNTI scrambling), ascending control channel power control information (control information of TPC-PUCCH-RNTI scrambling) and reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling), wherein, base station only utilizes DCIFormat1A to send described predefine control information.

Preferably, described base station only sends downwards public control information type described in predefine on described terminal is in the subframe of SCGx, described downwards public control information type comprises accidental access response control information (control information of RA-RNTI scrambling), TDD sub-frame allocation control information (control information of TDD-ModeA-RNTI scrambling), wherein, base station only utilizes DCIFormat1C to send described predefine control information.

Preferably, the DCIFormat that described base station only sends predefine or high-level signaling configuration to described terminal in the specific sub-frame of SCGx detects described downwards public control information type, described downwards public control information type comprises accidental access response control information (control information of RA-RNTI scrambling), contention resolved control information (control information of TempC-RNTI scrambling), ascending control channel power control information (control information of TPC-PUCCH-RNTI scrambling) and reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling), TDD sub-frame allocation control information (control information of TDD-ModeA-RNTI scrambling).

Preferably, when being configured to send accidental access response control information (control information of RA-RNTI scrambling) and the control information of TDD sub-frame allocation (control information of TDD-ModeA-RNTI scrambling) in specific sub-frame, adopt form DCIFormat1C to send described downwards public control information, and do not send ascending control channel power control information and reverse link traffic channel power control information in described subframe described terminal.Or, when being configured to send accidental access response control information (control information of RA-RNTI scrambling) and multicast and broadcast control information (control information of M-RNTI scrambling) in specific sub-frame, adopt form DCIFormat1C to send described downwards public control information, and do not send ascending control channel power control information and reverse link traffic channel power control information in described subframe described terminal.Or, when being configured to send accidental access response control information (control information of RA-RNTI scrambling) in specific sub-frame, adopt form DCIFormat1C to send described downwards public control information, and do not send ascending control channel power control information and reverse link traffic channel power control information in described subframe described terminal.Or, when be configured to send in specific sub-frame accidental access response control information (control information of RA-RNTI scrambling), ascending control channel power control information (control information of TPC-PUCCH-RNTI scrambling) or reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling) time, adopt form DCIFormat1A to send described downwards public control information, and do not send the control information of TDD sub-frame allocation and multicast and broadcast control information in described subframe described terminal.Or, when being configured to send contention resolved control information (control information of TempC-RNTI scrambling) and ascending control channel power control information (control information of TPC-PUCCH-RNTI scrambling) in specific sub-frame, adopt form DCIFormat1A to send described downwards public control information, and do not send the control information of TDD sub-frame allocation and multicast and broadcast control information in described subframe described terminal.Or, when being configured to send contention resolved control information (control information of TempC-RNTI scrambling) and reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling) in specific sub-frame, adopt form DCIFormat1A to send described downwards public control information, and do not send the control information of TDD sub-frame allocation and multicast and broadcast control information in described subframe described terminal.Or, when being configured to send contention resolved control information (control information of TempC-RNTI scrambling) and reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling) in specific sub-frame, adopt form DCIFormat1A to send described downwards public control information, and do not send the control information of TDD sub-frame allocation and multicast and broadcast control information in described subframe described terminal.

Preferably, Serving cell in described SCG independently should be distributed PRACHPreamble sequence and/or PRACH time domain and/or frequency domain resource and connect terminal to double-strand, thus SCG can identify correspondence double-strand when initial access connects terminal, under utilizing the method in claim 2 to send described public control, information is to the terminal of correspondence.Or, one group of PRACHPreamble sequence and/or PRACH time domain and/or frequency domain resource independently should be distributed in Serving cell in described SCG, thus cell receiver in SCG to PRACH in described group time, under utilizing the method in claim 2 to send described public control, information is to the terminal of correspondence.

Preferably, base station is by one or more subframe bunch of high-level signaling configurating terminal, for one or more subframe bunch, base station separate configurations terminal detects the control channel type of the Common Control Channel of public search space and/or the downwards public control information form (DCIFormat) of control channel in described subframe bunch.

Preferably, subframe bunch collocation method can be the method configuration in sub-frame offset and cycle or the method for bitmap, and for bit map method, wherein each bit represents a subframe.

A method of reseptance for control channel, comprising: terminal is divided into groups to the Serving cell that terminal detects according to serving cell types; Described terminal pins is to each grouping respectively predefine or obtain the downwards public control information form (DCIFormat) of detection control channel type required for downwards public control information that terminal detects in public search space and/or control channel by receiving high-level signaling.At least comprise two cell set CG in described cell group, wherein, only there is a cell set is MCG (main plot group), other cell set be divided into for SCGx (x be greater than 0 integer).

Preferably, in each CG group, terminal only detects described downwards public control information at the public search space of the main Serving cell of corresponding CG.

Preferably, described terminal only detects downwards public control information type described in predefine in the subframe of SCGx, described downwards public control information type comprises accidental access response control information (control information of RA-RNTI scrambling), contention resolved control information (control information of TempC-RNTI scrambling), ascending control channel power control information (control information of TPC-PUCCH-RNTI scrambling) and reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling), wherein, terminal only utilizes DCIFormat1A to detect described predefine control information.

Preferably, described terminal in the subframe of SCGx on only detect downwards public control information type described in predefine, described downwards public control information type comprises accidental access response control information (control information of RA-RNTI scrambling), TDD sub-frame allocation control information (control information of TDD-ModeA-RNTI scrambling), wherein, terminal only utilizes DCIFormat1C to detect described predefine control information.

Preferably, described terminal only detects described downwards public control information type according to the DCIFormat of predefine or high-level signaling configuration in the specific sub-frame of SCGx, described downwards public control information type comprises accidental access response control information (control information of RA-RNTI scrambling), contention resolved control information (control information of TempC-RNTI scrambling), ascending control channel power control information (control information of TPC-PUCCH-RNTI scrambling) and reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling), TDD sub-frame allocation control information (control information of TDD-ModeA-RNTI scrambling).

Preferably, when terminal configuration is when detecting accidental access response control information (control information of RA-RNTI scrambling) and the control information of TDD sub-frame allocation (control information of TDD-ModeA-RNTI scrambling) in specific sub-frame, adopt form DCIFormat1C to detect described downwards public control information, and in the subframe of correspondence, do not detect ascending control channel power control information and reverse link traffic channel power control information.Or, when terminal configuration is when detecting accidental access response control information (control information of RA-RNTI scrambling) and multicast and broadcast control information (control information of M-RNTI scrambling) in specific sub-frame, adopt form DCIFormat1C to detect described downwards public control information, and in the subframe of correspondence, do not detect ascending control channel power control information and reverse link traffic channel power control information.Or, when terminal configuration is when detecting accidental access response control information (control information of RA-RNTI scrambling) in specific sub-frame, adopt form DCIFormat1C to detect described downwards public control information, and in the subframe of correspondence, do not detect ascending control channel power control information and reverse link traffic channel power control information.Or, when terminal configuration be detect in specific sub-frame accidental access response control information (control information of RA-RNTI scrambling), ascending control channel power control information (control information of TPC-PUCCH-RNTI scrambling) or reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling) time, adopt form DCIFormat1A to detect described downwards public control information, and in the subframe of correspondence, do not detect the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal.Or, when terminal configuration is when detecting contention resolved control information (control information of TempC-RNTI scrambling) and ascending control channel power control information (control information of TPC-PUCCH-RNTI scrambling) in specific sub-frame, adopt form DCIFormat1A to detect described downwards public control information, and in the subframe of correspondence, do not detect the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal.Or, when terminal configuration is when detecting contention resolved control information (control information of TempC-RNTI scrambling) and reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling) in specific sub-frame, adopt form DCIFormat1A to detect described downwards public control information, and in the subframe of correspondence, do not detect the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal.Or, when terminal configuration is when detecting contention resolved control information (control information of TempC-RNTI scrambling) and reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling) in specific sub-frame, adopt form DCIFormat1A to detect described downwards public control information, and in the subframe of correspondence, do not detect the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal.

Terminal receives the high-level signaling of base station configuration, obtain bunch configuration of one or more subframe, and for one or more subframe bunch, independently determine that terminal detects the control channel type of the Common Control Channel of public search space and/or the downwards public control information form (DCIFormat) of control channel in described subframe bunch.

Below by preferred implementation, the technical scheme that above-described embodiment provides is described.Fig. 6 is a system configuration scene schematic diagram according to the preferred embodiment of the invention, as shown in Figure 6, multiple Serving cells corresponding for MeNB are divided into main Serving cell group (MCG), multiple Serving cells corresponding for SeNB are divided into auxiliary serving cell group (SCG).

Embodiment one

Base station side:

Serving cell in described SCG independently should be distributed PRACHPreamble sequence and/or PRACH time domain and/or frequency domain resource and connect terminal to double-strand, thus SCG can identify correspondence double-strand when initial access connects terminal, when the public search space that SPcell is corresponding sends common control information, the common control information type that employing becheduled for or high-level signaling configures or DCIFormat are to send described common control information.

End side:

Terminal judges whether to adopt the common control information type of predefine or high-level signaling configuration or DCIFormat to detect described common control information according to the PRACHPreamble sequence received and/or PRACH time domain and/or frequency domain resource.

Or,

Terminal judges whether to adopt the common control information type of predefine or high-level signaling configuration or DCIFormat to detect described common control information according to whether being in two linking status.

Embodiment two

Base station side:

One group of PRACHPreamble sequence and/or PRACH time domain and/or frequency domain resource independently should be distributed in Serving cell in described SCG, thus cell receiver in SCG to PRACH in described group time, adopt becheduled for or the common control information type of high-level signaling configuration or DCIFormat to send described common control information.

End side:

Or,

Embodiment three

Base station side:

According to the method for embodiment one and embodiment two, base station is not supported on the public search space of SeNB for described terminal predefine and detects eIMTA-RNTI, the common control information of the public search space that SeNB is relevant to described terminal only adopts DCIFormat1A to transmit in addition, if only adopt described SeNB to support dynamic TDD sub-frame configuration, so double-strand connects terminal and ensures that the change of dynamic subframe can not affect transmission and the feedback (being similar to the terminal of dispatching R8 ~ R11 at TDD dynamic-configuration SeNB) of terminal only by scheduling, this mode can ensure that terminal is under double-strand connects scene, maximum blind check number of times 6 times can be reduced, ensure that terminal implementation complexity is low.

End side:

Connecing terminal for double-strand only utilizes DCIFormat1A to detect common control information at the public search space of SeNB, double-strand connects terminal and is not supported on SeNB and detects eIMTA-RNTI, if SeNB supports dynamic TDD sub-frame configuration, so double-strand connects terminal and ensures that the change of dynamic subframe can not affect transmission and the feedback (being similar to the terminal of dispatching R8 ~ R11 at TDD dynamic-configuration SeNB) of terminal only by scheduling, this mode can ensure that terminal is under double-strand connects scene, maximum blind check number of times 6 times can be reduced, ensure that terminal implementation complexity is low.

Embodiment four

Base station side:

According to the method for embodiment one and embodiment two, base station is predefined on the public search space of SeNB for described terminal and only utilizes DCIFormat1C to detect common control information, this mode can ensure that terminal is under double-strand connects scene, maximum blind check number of times 6 times can be reduced, ensure that terminal implementation complexity is low.

End side:

Terminal is connect for double-strand and only detects DCIFormat1C (RA-RNTI and eIMTA-RNTI) in detection accidental access response subframe, namely double-strand connects terminal when detecting Stochastic accessing and being corresponding, and only comparing carrier aggregation scene increases maximum blind check number of times 6 times.

Embodiment five

Base station side:

The DCIFormat that base station only sends predefine or high-level signaling configuration to described terminal in the specific sub-frame of SCGx detects described downwards public control information type, described downwards public control information type comprises accidental access response control information (control information of RA-RNTI scrambling), contention resolved control information (control information of TempC-RNTI scrambling), ascending control channel power control information (control information of TPC-PUCCH-RNTI scrambling) and reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling), TDD sub-frame allocation control information (control information of TDD-ModeA-RNTI scrambling).

End side:

Terminal only detects described downwards public control information type according to the DCIFormat of predefine or high-level signaling configuration in the specific sub-frame of SCGx, described downwards public control information type comprises accidental access response control information (control information of RA-RNTI scrambling), contention resolved control information (control information of TempC-RNTI scrambling), ascending control channel power control information (control information of TPC-PUCCH-RNTI scrambling) and reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling), TDD sub-frame allocation control information (control information of TDD-ModeA-RNTI scrambling).

Embodiment six

Base station side:

When base station sends accidental access response control information (control information of RA-RNTI scrambling) and the control information of TDD sub-frame allocation (control information of TDD-ModeA-RNTI scrambling) to particular terminal in specific sub-frame, adopt form DCIFormat1C to send described downwards public control information, and in described subframe, do not send ascending control channel power control information and reverse link traffic channel power control information.

End side:

When described terminal configuration is when detecting accidental access response control information (control information of RA-RNTI scrambling) and the control information of TDD sub-frame allocation (control information of TDD-ModeA-RNTI scrambling) in specific sub-frame, form DCIFormat1C is adopted to detect described downwards public control information.And in the subframe of correspondence, do not detect ascending control channel power control information and reverse link traffic channel power control information.

Embodiment seven

Base station side:

When base station sends accidental access response control information (control information of RA-RNTI scrambling) and multicast and broadcast control information (control information of M-RNTI scrambling) to particular terminal in specific sub-frame, form DCIFormat1C is adopted to send described downwards public control information.And in described subframe, do not send ascending control channel power control information and reverse link traffic channel power control information.

End side:

When described terminal configuration is when detecting accidental access response control information (control information of RA-RNTI scrambling) and multicast and broadcast control information (control information of M-RNTI scrambling) in specific sub-frame, form DCIFormat1C is adopted to detect described downwards public control information.And in the subframe of correspondence, do not detect ascending control channel power control information and reverse link traffic channel power control information.

Embodiment eight

Base station side:

When base station to particular terminal send in specific sub-frame accidental access response control information (control information of RA-RNTI scrambling), ascending control channel power control information (control information of TPC-PUCCH-RNTI scrambling) or reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling) time, adopt form DCIFormat1A to send described downwards public control information.And in the subframe of correspondence, do not send the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal.

End side:

When described terminal configuration be detect in specific sub-frame accidental access response control information (control information of RA-RNTI scrambling), ascending control channel power control information (control information of TPC-PUCCH-RNTI scrambling) or reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling) time, adopt form DCIFormat1A to detect described downwards public control information.And in the subframe of correspondence, do not detect the control information of TDD sub-frame allocation and multicast and broadcast control information.

Embodiment nine

Base station side:

When base station sends contention resolved control information (control information of TempC-RNTI scrambling) and ascending control channel power control information (control information of TPC-PUCCH-RNTI scrambling) to particular terminal in specific sub-frame, form DCIFormat1A is adopted to send described downwards public control information.And in the subframe of correspondence, do not send the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal.

End side:

When described terminal configuration is when detecting contention resolved control information (control information of TempC-RNTI scrambling) and ascending control channel power control information (control information of TPC-PUCCH-RNTI scrambling) in specific sub-frame, form DCIFormat1A is adopted to detect described downwards public control information.And in the subframe of correspondence, do not detect the control information of TDD sub-frame allocation and multicast and broadcast control information.

Embodiment ten

Base station side:

When base station sends contention resolved control information (control information of TempC-RNTI scrambling) and reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling) to particular terminal in specific sub-frame, form DCIFormat1A is adopted to send described downwards public control information.And in the subframe of correspondence, do not send the control information of TDD sub-frame allocation and the multicast and broadcast control information of described terminal.

End side:

When described terminal configuration is when detecting contention resolved control information (control information of TempC-RNTI scrambling) and reverse link traffic channel power control information (control information of TPC-PUSCH-RNTI scrambling) in specific sub-frame, form DCIFormat1A is adopted to detect described downwards public control information.And in the subframe of correspondence, do not detect the control information of TDD sub-frame allocation and multicast and broadcast control information.

Embodiment 11:

Base station side:

Base station is by one or more subframe bunch of high-level signaling configurating terminal, for one or more subframe bunch, base station separate configurations terminal detects the control channel type of the Common Control Channel of public search space and/or the downwards public control information form (DCIFormat) of control channel in described subframe bunch.Preferably, subframe bunch collocation method can be the method configuration in sub-frame offset and cycle or the method for bitmap, and for bit map method, wherein each bit represents a subframe.Wherein, 0 represents that corresponding subframe does not belong to described subframe bunch, and 1 represents that described subframe belongs to described subframe bunch.

End side:

Terminal receives the high-level signaling of base station configuration, obtain bunch configuration of one or more subframe, and for one or more subframe bunch, independently determine that terminal detects the control channel type of the Common Control Channel of public search space and/or the downwards public control information form (DCIFormat) of control channel in described subframe bunch.Preferably, subframe bunch collocation method can be the method configuration in sub-frame offset and cycle or the method for bitmap, and for bit map method, wherein each bit represents a subframe.Wherein, 0 represents that corresponding subframe does not belong to described subframe bunch, and 1 represents that described subframe belongs to described subframe bunch.

Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, the step of method or description shown in can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a collocation method for control channel, is characterized in that, comprising:

Divide into groups to the Serving cell that terminal detects in base station, described Serving cell is divided at least two cell set CG, wherein there is a main plot group MCG, and other cell set SCGx one or more, x be greater than 0 integer;

Described base station is for the downwards public control information form DCIFormat of each grouping predefine or the control channel information type configured required for downwards public control information that described terminal detects in public search space and/or control channel respectively.

2. method according to claim 1, it is characterized in that, described base station comprises for the downwards public control information form of the control channel information type required for the downwards public control information in each grouping respectively terminal detection public search space described in predefine and/or control channel:

Terminal described in the predefine of described base station only detects described downwards public control information at the public search space of main Serving cell corresponding to each CG, and sends corresponding control information to described terminal according to predefined rule.

3. method according to claim 2, is characterized in that, the control information that described base station sends correspondence to described terminal according to predefined rule comprises:

Described base station sends the downwards public control information of predefined type only in the subframe of SCGx described terminal, the downwards public control information of described predefined type comprises following control information one of at least: accidental access response control information, contention resolved control information, ascending control channel power control information and reverse link traffic channel power control information, wherein, described base station only utilizes DCIFormat1A to send described downwards public control information.

4. method according to claim 2, is characterized in that, the control information that described base station sends correspondence to described terminal according to predefined rule comprises:

Described base station sends the downwards public control information of predefined type only in the subframe of SCGx described terminal, the downwards public control information of described predefined type comprises following control information one of at least: accidental access response control information, the control information of TDD sub-frame allocation, wherein, described base station only utilizes DCIFormat1C to send described downwards public control information.

5. method according to claim 2, it is characterized in that, described base station comprises for the downwards public control information form of each grouping predefine or the control channel information type configured required for downwards public control information that described terminal detects in public search space and/or control channel respectively:

Described base station only sends the DCIFormat of predefine or high-level signaling configuration to described terminal in the default subframe of SCGx, wherein, described DCIFormat is used to indicate the downwards public control information type that described terminal detects, and described downwards public control information type comprises following control information one of at least: accidental access response control information, contention resolved control information, ascending control channel power control information, reverse link traffic channel power control information and the control information of TDD sub-frame allocation.

6. method according to claim 5, is characterized in that, the DCIFormat that described base station only sends predefine or high-level signaling configuration to described terminal in the default subframe of SCGx comprises:

When being configured to send accidental access response control information and the control information of TDD sub-frame allocation in described default subframe, described base station adopts form DCIFormat1C to send described downwards public control information, and does not send ascending control channel power control information and reverse link traffic channel power control information in described default subframe; Or,

7. method according to claim 2, is characterized in that, before the control information that described base station gives the transmission of described terminal corresponding according to predefined rule, also comprises:

Serving cell in described SCGx is that double-strand connects terminal independent allocation PRACHPreamble sequence and/or PRACH time domain and/or frequency domain resource; Or,

Serving cell independent allocation in described SCGx one group of PRACHPreamble sequence and/or PRACH time domain and/or frequency domain resource, the cell receiver in described SCGx is to the PRACH in the group of described PRACHPreamble sequence and/or PRACH time domain and/or frequency domain resource.

8. method according to claim 2, is characterized in that, terminal described in the predefine of described base station only detects described downwards public control information at the public search space of main Serving cell corresponding to each CG and comprises:

Described base station configures one or more subframe bunch of described terminal by high-level signaling;

Described base station configures described terminal and detect the control channel information type of the Common Control Channel of public search space and/or the downwards public control information form of control channel in described subframe bunch.

9. a method of reseptance for control channel, is characterized in that, comprising:

Terminal is divided into groups to the Serving cell that described terminal detects according to serving cell types, and described Serving cell is divided at least two cell set CG, wherein there is a main plot group MCG, and other cell set SCGx one or more, x be greater than 0 integer;

Described terminal pins is to each grouping predefine or obtain the downwards public control information form DCIFormat of control channel information type required for downwards public control information that described terminal detects in public search space and/or control channel by receiving high-level signaling respectively.

10. method according to claim 9, it is characterized in that, described terminal pins to each grouping respectively predefine or the downwards public control information form that obtains control channel information type required for downwards public control information that described terminal detects in public search space and/or control channel by receiving high-level signaling comprise:

Described terminal only detects described downwards public control information at the public search space of main Serving cell corresponding to each CG.

11. methods according to claim 10, is characterized in that, described terminal only detects described downwards public control information at the public search space of main Serving cell corresponding to each CG and comprises:

Described terminal only detects the downwards public control information of predefined type in the subframe of SCGx, the downwards public control information of described predefined type comprises following control information one of at least: accidental access response control information, contention resolved control information, ascending control channel power control information and reverse link traffic channel power control information, wherein, described terminal only utilizes DCIFormat1A to detect described downwards public control information.

12. methods according to claim 10, is characterized in that, described terminal only detects described downwards public control information at the public search space of main Serving cell corresponding to each CG and comprises:

Described terminal only detects the described downwards public control information of predefined type in the subframe of SCGx, the downwards public control information of described predefined type comprises following control information one of at least: accidental access response control information, the control information of TDD sub-frame allocation, wherein, described terminal only utilizes DCIFormat1C to detect described downwards public control information.

13. methods according to claim 10, is characterized in that, described terminal only detects described downwards public control information at the public search space of main Serving cell corresponding to each CG and comprises:

Described terminal only detects downwards public control information type according to the DCIFormat of predefine or high-level signaling configuration in the default subframe of SCGx, and described downwards public control information type comprises following control information one of at least: accidental access response control information, contention resolved control information, ascending control channel power control information, reverse link traffic channel power control information and the control information of TDD sub-frame allocation.

14. methods according to claim 13, is characterized in that, described terminal only comprises according to the DCIFormat detection downwards public control information type of predefine or high-level signaling configuration in the default subframe of SCGx:

When terminal configuration for detecting accidental access response control information and the control information of TDD sub-frame allocation in default subframe, adopt form DCIFormat1C to detect described downwards public control information, and do not detect ascending control channel power control information and reverse link traffic channel power control information in the default subframe of correspondence; Or,

15. methods according to claim 10, is characterized in that, in described terminal only before the public search space of main Serving cell corresponding to each CG detects described downwards public control information, also comprise:

Described terminal obtains one or more subframe bunch according to the high-level signaling of the base station configuration received;

The inking device of 16. 1 kinds of control channels, is arranged in base station, it is characterized in that, comprising:

First grouping module, divides into groups for the Serving cell detected terminal, and described Serving cell is divided at least two cell set CG, wherein there is a main plot group MCG, and other cell set SCGx one or more, x be greater than 0 integer;

Configuration module, for for each grouping predefine or configure described terminal and detect the control channel information type of downwards public control information in public search space and/or the downwards public control information form DCIFormat of control channel respectively.

17. devices according to claim 16, is characterized in that, described configuration module comprises:

Predefine unit, only detects described downwards public control information at the public search space of main Serving cell corresponding to each CG for terminal described in predefine, and sends corresponding control information to described terminal according to predefined rule.

The receiving system of 18. 1 kinds of control channels, is arranged in terminal, it is characterized in that, comprising:

Second grouping module, for dividing into groups to the Serving cell that described terminal detects according to serving cell types, described Serving cell being divided at least two cell set CG, wherein there is a main plot group MCG, and other cell set SCGx one or more, x be greater than 0 integer;

Acquisition module, for for each grouping predefine or obtain described terminal detect the control channel information type of downwards public control information in public search space and/or the downwards public control information form DCIFormat of control channel by receiving high-level signaling respectively.

19. devices according to claim 18, is characterized in that, described acquisition module comprises:

Detecting unit, for only detecting described downwards public control information at the public search space of main Serving cell corresponding to each CG.

The configuration-system of 20. 1 kinds of control channels, is characterized in that, comprises the inking device of the control channel as described in claim 16 or 17, also comprises the receiving system of the control channel as described in claim 18 or 19.