CN104936206A

CN104936206A - Configuration and detection method, device and system of control channel

Info

Publication number: CN104936206A
Application number: CN201410105692.6A
Authority: CN
Inventors: 郭森宝; 戴博; 左志松
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2014-03-20
Filing date: 2014-03-20
Publication date: 2015-09-23
Also published as: WO2015139439A1

Abstract

The invention discloses a configuration and detection method, device and system of a control channel. The configuration method of the control channel includes: a base station performs grouping on serving cells detected by a terminal according to serving cell type and/or subframe type; the base station configures for each group detection control channel information required by detecting the control channel by the terminal, at least detection control channel information to which two groups correspond is different, the detection control channel information includes at least one of: detection of candidate positions of control channel, detection of the number of the candidate positions of the control channel, detection of the type of the control channel, the number of times of detection of the control channel.

Description

The configuration of control channel, detection method, Apparatus and system

Technical field

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

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, Physical Control Format Indicator Channel), physical hybrid automatic repeat request indicator channel (PHICH, Physical Hybrid Automatic Retransmission Request Indicator Channel), Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel).

PDCCH is used for bearing downlink control information (DCI, Downlink Control Information), comprising: uplink and downlink schedule information, and uplink power control information.The form (DCI format) of DCI is divided into following several: DCI format0, DCI format1, DCI format1A, DCI format1B, DCI format1C, DCI format1D, DCI format2, DCI format2A, DCI format3 and DCI format3A etc.Wherein:

DCI format0 is used to indicate the scheduling of Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared Channel);

DCI format1, DCI format1A, DCI format1B, DCI format1C, DCI format1D are used for the different mode that Physical Downlink Shared Channel (PDSCH, a Physical Downlink Shared Channel) code word is dispatched;

DCI format2, DCI format2A, DCI format2B are used for the different mode of space division multiplexing;

DCI format3, DCI format3A are used for the different mode of the power control instruction of Physical Uplink Control Channel (PUCCH, Physical Uplink Control Channel) and PUSCH.

The physical resource of PDCCH transmission is with control channel element (CCE, Control Channel Element) be unit, the size of a CCE is 9 resource element group (REG, Resource Element Group), i.e. 36 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 (Aggregation level) defines a search volume (Search space), comprises the search volume of public (common) and the search volume of UE proprietary (UE-Specific).OFDM (OFDM, Orthogonal Frequency Division Multiplexing) 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 DCI format 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 (Preamble Index) and Physical Random Access Channel mask index (PRACH Mask Index) by DCI format1A.If UE is set to random access radio network temporary mark (RA-RNTI by high level, Random Access Radio Network Temporary Identifier) cyclic redundancy check (CRC) (CRC of scrambling, Cyclical Redundancy Check) 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, Cell Radio Network Temporary Identifier) CRC of scrambling carries out PDCCH decoding, then and 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 (Physical downlink control channel, Physical Downlink Control Channel) carry dispatching distribution and other control information, each PDCCH is by several CCE (Control Channel Element, 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 cyclic redundancy check (CRC) (the Cyclic Redundancy Check for PDCCH is notified by high-level signaling, CRC) Radio Network Temporary Identifier (Radio Network Temporary Identity, the RNTI) type of scrambling.

Search volume be polymerized rank L and candidate PDCCH quantity M ^(L)between relation in 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 (UE ID) and subframe numbers etc. _k, then detect in search volume, until the PDCCH giving oneself detected.

Table 3.PDCCH Candidate Set

The corresponding relation of polymerization rank and the relative position of PDCCH first control channel unit in user's dedicated search space is in table 4.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. is polymerized the corresponding relation of rank and first CCE position

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) (Component Carrier) is on different frequency bands adopted carrier aggregation (CA, Carrier Aggregation) 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 prior art, 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, Primary Component Carrier), remaining component carrier is defined as auxiliary component carrier (SCC, Secondary Component Carrier).In addition, component carrier can also be referred to as Serving cell (Serving Cell), and principal component carrier wave can be referred to as main Serving cell (Pcell, Primary Serving Cell), auxiliary component carrier can be referred to as auxiliary serving cell (Scell, Secondary Serving Cell).

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 backhual and are connected, the scheduling independence between two nodes.Owing to introducing independent scheduling, terminal needs on two eNB, to detect detection control channel on one or more carrier wave respectively.Terminal needs on SeNB, detect CSS space in addition, thus obtains Stochastic accessing Msg2 information corresponding to SeNB.Therefore, if according to existing mode, the basis of CA is introduced double-strand and connects the blind check number of times of increase terminal.

Summary of the invention

Connecing the problem of the blind check number of times of increase terminal for introducing double-strand on the basis of CA, the invention provides a kind of configuration of control channel, detection method, 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, comprising:, according to serving cell types and/or subframe type, divide into groups to the Serving cell that terminal detects in base station; Described base station is for the detection control channel information of each grouping respectively required for configurating terminal detection control channel, wherein, detection control channel informations corresponding at least two groupings are different, described detection control channel information comprise following one of at least: the position candidate detecting described control channel; Detect the position candidate quantity of described control channel; Detect the type of described control channel; Detect the number of times of described control channel.

Alternatively, the Serving cell that terminal detects is carried out grouping and is comprised: the Serving cell of N number of described base station is grouped into S group, wherein, N and S be greater than 0 integer, and 0<S<N+1; When described base station is for each grouping difference configuration detection control channel information, described method also comprises: the detection control channel information that described base station is organized described base station correspondence by independent predefine signaling or high-level signaling configurating terminal.

Alternatively, described Serving cell is divided into two groups, one group is the Serving cell of main serving BS MeNB, and the Serving cell that another group is non-master serving BS SeNB, described MeNB and SeNB is respectively by independent predefine or high-level signaling configuration detection control channel information.

Alternatively, described control channel is the control channel of public search space.

Alternatively, base station is according to subframe type, and divide into groups to the Serving cell that terminal detects, comprising: SeNB divides into groups for different subframes, the subframe that SPCell exists public search space is divided into a group, and other subframes are divided into a group.

Alternatively, described base station limitation arrangement is 4 to the maximum service number of cells of terminal.

Alternatively, Serving cell corresponding to the described base station the highest cell index of restriction has less control channel and detects number of times, ensures that the total detection number of times in all communities is no more than predefined maximum detection number of times.

Alternatively, described base station predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration.

Alternatively, described base station predefine terminal detects the subframe of the accidental access response information in the public search space of the Serving cell that non-dominant base configures, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration.

Alternatively, the multiple Serving cells configured under described non-dominant base are arranged in organizes TAG at the same time in advance.

Alternatively, described base station predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, all or part of control information of all Serving cells in the TAG that the described public search space control information that terminal does not detect described non-dominant base configuration is correlated with.

Alternatively, when the corresponding main Serving cell of non-dominant base occur random access procedure or when described public search space information be correlated with TAG be main Serving cell place TAG time, predefine terminal does not detect the Downlink Control Information of all Serving cells that described non-dominant base configures and descending control information format DCI Format corresponding to ascending control information in described subframe.

Alternatively, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, in the corresponding described TAG of described non-dominant base, all Serving cells adopt the mode of self scheduling, and predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information.

Alternatively, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information.

Alternatively, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts across carrier scheduling mode, and described scheduling carrier wave is arranged in another one and the TAG of random access procedure does not occur or does not need to carry out the TAG of random access procedure or the synchronous TAG of up maintenance, predefine terminal does not detect DCI Format corresponding to the ascending control information of corresponding Serving cell.

Alternatively, described base station predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, terminal, when described public search space detects public search space relevant information, only detects DCI Format1A or DCI Format1C.

Alternatively, described public search space relevant information at least comprises one of following information: accidental access response relevant information Msg2, system message information SI and beep-page message information Paging.

Alternatively, described public search space relevant information comprises: accidental access response information.

According to an aspect of the present invention, provide a kind of detection method of control channel, comprising: terminal is divided into groups to the Serving cell that terminal detects according to Serving cell and/or subframe type; Described terminal pins determines the detection control channel information required for detection control channel respectively to each grouping, wherein, described detection control channel information comprise following one of at least: the position candidate detecting described control channel; Detect the position candidate quantity of described control channel; Detect the type of described control channel; Detect the number of times of described control channel; The detection control channel information of at least two grouping correspondences is not identical; Described terminal, according to the described detection control channel information determined for each grouping, detects the control channel of the Serving cell in each grouping.

Alternatively, terminal is divided into groups to the Serving cell that terminal detects according to Serving cell, comprising: the Serving cell of N number of described base station is grouped into S group, wherein, N and S be greater than 0 integer, and 0<S<N+1; Described terminal pins determines the detection control channel information of the control channel detected respectively during to each grouping, described method also comprises: described terminal is by independent predefine or receive the described detection control channel information that high-level signaling configures terminal detection control channel in each grouping.

Alternatively, the Serving cell of N number of described base station is grouped into S group and comprises by described terminal: Serving cell corresponding for main serving BS MeNB is divided into one group by described terminal, and Serving cell corresponding for non-master serving BS SeNB is divided into one group.

Alternatively, terminal is divided into groups to the Serving cell that terminal detects according to Serving cell and/or subframe type, comprise: the subframe that described terminal is different to SeNB is divided into groups, the subframe that SPCell exists public search space is divided into a group, other subframes are divided into a group.

Alternatively, when described terminal pins determines detection control channel information respectively to each grouping, described method also comprises: the maximum service number of cells of described terminal limitation arrangement is 4.

Alternatively, described terminal limits Serving cell corresponding to minimum cell index to be had less control channel and detects number of times, ensures that the total detection number of times in all communities is no more than predefined maximum detection number of times.

Alternatively, described terminal predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration.

Alternatively, described terminal predefine terminal detects the subframe of the accidental access response information in the public search space of the Serving cell that non-dominant base configures, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration.

Alternatively, described terminal predefine terminal is detecting the subframe of public search space of the corresponding main Serving cell of non-dominant base, all or part of control information of all Serving cells in the TAG that the described public search space control information that terminal does not detect described non-dominant base configuration is correlated with.

Alternatively, when the corresponding main Serving cell of non-dominant base occur random access procedure or when described public search space information be correlated with TAG be main Serving cell place TAG time, predefine terminal does not detect the Downlink Control Information of all Serving cells that described non-dominant base configures and DCI Format corresponding to ascending control information in described subframe.

Alternatively, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information.

Alternatively, described terminal predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, and terminal is when described public search space detects public search space relevant information, only detects DCI Format1A or DCI Format1C.

According to a further aspect of the invention, provide a kind of inking device of control channel, comprising: grouping module, for according to serving cell types and/or subframe type, divided into groups in the Serving cell that terminal detects; Configuration module, for distinguishing the detection control channel information needed for configurating terminal detection control channel for each grouping, wherein, detection control channel informations corresponding at least two groupings are different, and described detection control channel information comprise following one of at least: the position candidate detecting described control channel; Detect the position candidate quantity of described control channel; Detect the type of described control channel; Detect the number of times of described control channel.

Alternatively, described grouping module is used for the Serving cell of N number of described base station to be grouped into S group, wherein, N and S be greater than 0 integer, and 0<S<N+1; Described configuration module is also for by independent predefine signaling or the high-level signaling configurating terminal detection control channel information to the detection control channel of described base station correspondence group.

Alternatively, described grouping module is used for dividing into groups to the different subframe of non-master serving BS SeNB, and the subframe that SPCell exists public search space is divided into a group, and other subframes are divided into a group.

Alternatively, described device also comprises: control module, for configuration is restricted to 4 to the maximum service number of cells of terminal.

Alternatively, described control module also has less control channel detect number of times for limiting Serving cell corresponding to the highest cell index, ensures that the total detection number of times in all communities is no more than predefined maximum detection number of times.

Alternatively, described configuration module also for by below predetermined configuration one of at least: predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration; Predefine terminal detects the subframe of the accidental access response information in the public search space of the Serving cell that non-dominant base configures, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration; Predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, all or part of control information of all Serving cells in the TAG that the described public search space control information that terminal does not detect described non-dominant base configuration is correlated with.

Alternatively, described configuration module is also for by information one of at least below predetermined configuration: when the corresponding main Serving cell of non-dominant base occur random access procedure or when described public search space information be correlated with TAG be main Serving cell place TAG time, predefine terminal does not detect the Downlink Control Information of all Serving cells that described non-dominant base configures and descending control information format DCI Format corresponding to ascending control information in described subframe; When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, in the corresponding described TAG of described non-dominant base, all Serving cells adopt the mode of self scheduling, and predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information; When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information; When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts across carrier scheduling mode, and described scheduling carrier wave is arranged in another one and the TAG of random access procedure does not occur or does not need to carry out the TAG of random access procedure or the synchronous TAG of up maintenance, predefine terminal does not detect DCI Format corresponding to the ascending control information of corresponding Serving cell; Predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, and terminal, when described public search space detects public search space relevant information, only detects DCI Format1A or DCI Format1C.

According to a further aspect of the invention, provide a kind of checkout gear of control channel, comprising: grouping module, for dividing into groups to the Serving cell that terminal detects according to Serving cell and/or subframe type; Determination module, for determining the detection control channel information of described control channel respectively for each grouping, described detection control channel information comprise following one of at least: the position candidate detecting described control channel; Detect the position candidate quantity of described control channel; Detect the type of described control channel; Detect the number of times of described control channel; Wherein, the detection control channel information of at least two grouping correspondences is not identical; Detection module, for the described detection control channel information determined for each grouping according to described determination module, detects the control channel of the Serving cell in each grouping.

Alternatively, described grouping module is used for the Serving cell of N number of described base station to be grouped into S group, wherein, N and S be greater than 0 integer, and 0<S<N+1; Described determination module is also for configuring the described detection control channel information of terminal detection control channel in each grouping by independent predefine or reception high-level signaling.

Alternatively, the subframe that SPCell exists public search space also for dividing into groups to the different subframe of non-master serving BS SeNB, is divided into a group by described grouping module, other subframes are divided into a group.

Alternatively, also comprising: control module, is 4 for being restricted to the maximum service number of cells of terminal configuration.

Alternatively, described control module also has less control channel detect number of times for limiting Serving cell corresponding to minimum cell index, ensures that the total detection number of times in all communities is no more than predefined maximum detection number of times.

Alternatively, described configuration module is also for being configured to down information one of at least by predefined mode: predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration; Predefine terminal detects the subframe of the accidental access response information in the public search space of the Serving cell that non-dominant base configures, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration; Predefine terminal is detecting the subframe of public search space of the corresponding main Serving cell of non-dominant base, all or part of control information of all Serving cells in the TAG that the described public search space control information that terminal does not detect described non-dominant base configuration is correlated with.

Alternatively, described configuration module is also for being configured to down information one of at least by predefine mode: when the corresponding main Serving cell of non-dominant base occur random access procedure or when described public search space information be correlated with TAG be main Serving cell place TAG time, predefine terminal does not detect the Downlink Control Information of all Serving cells that described non-dominant base configures and DCI Format corresponding to ascending control information in described subframe; When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, in the corresponding described TAG of described non-dominant base, all Serving cells adopt the mode of self scheduling, and predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information; When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information; When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts across carrier scheduling mode, and described scheduling carrier wave is arranged in another one and the TAG of random access procedure does not occur or does not need to carry out the TAG of random access procedure or the synchronous TAG of up maintenance, predefine terminal does not detect DCI Format corresponding to the ascending control information of corresponding Serving cell; Predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, and terminal, when described public search space detects public search space relevant information, only detects DCI Format1A or DCI Format1C.

According to a further aspect of the invention, provide a kind of detection system of control channel, comprising: base station and terminal, wherein, the inking device of the control channel that described base station is above-mentioned, described terminal comprises the checkout gear of above-mentioned control channel.

By the present invention, when not affecting terminal average throughput and real time scheduling of traffic, can 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

Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 is the structural representation of the detection system of control channel according to the embodiment of the present invention;

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

Fig. 3 is the flow chart of the collocation method of control channel according to the embodiment of the present invention;

Fig. 4 is the structural representation of the inking device of control channel according to the embodiment of the present invention;

Fig. 5 is the structural representation of the checkout gear of control channel according to the embodiment of the present invention;

Fig. 6 is a system configuration scene schematic diagram according to the embodiment of the present 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 inventive embodiments, 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) that in SeNB, different TAG community (carrier wave) is corresponding on SPcell.

Preferably, the up PUCCH of Serving cell under SeNB can not be limited can not transmit on MPcell carrier wave.

Fig. 1 is the structural representation of the detection system of control channel according to the embodiment of the present invention, and as shown in Figure 1, this system mainly comprises base station 10 and terminal 12.Wherein, the relevant information of the control channel that base station 10 is detected for terminal configuration, terminal 12, according to the configuration of base station 10, detects control channel.Particularly, base station 10, for according to serving cell types and/or subframe type, divided into groups in the Serving cell that terminal detects, for the detection control channel information of each grouping difference configurating terminal detection control channel, wherein, the detection control channel informations of at least two grouping correspondences are not identical, wherein, detection control channel information can for following one of at least: the position candidate detecting described control channel; Detect the position candidate quantity of described control channel; Detect the type of described control channel; Detect the number of times of described control channel.Terminal 12, for dividing into groups to the Serving cell that terminal detects according to Serving cell and/or subframe type; The described detection control channel information of detection control channel is determined respectively for each grouping; Then according to the described detection control channel information determined for each grouping, the control channel of the Serving cell in each grouping is detected.

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

Fig. 2 is the flow chart of the collocation method of control channel according to the embodiment of the present invention, as shown in Figure 2, mainly comprises the following steps:

Step S202, according to serving cell types and/or subframe type, divide into groups to the Serving cell that terminal detects in base station;

Step S203, described base station is for the detection control channel information of each grouping respectively needed for configurating terminal detection control channel, wherein, detection control channel informations corresponding at least two groupings are not identical, and detection control channel information can for following one of at least: the position candidate detecting described control channel; Detect the position candidate quantity of described control channel; Detect the type of described control channel; Detect the number of times of described control channel

Alternatively, the Serving cell that terminal detects is carried out grouping and is comprised: the Serving cell of N number of described base station is grouped into S group, wherein, N and S be greater than 0 integer, and 0<S<N+1; Then base station can by independent predefine signaling or the high-level signaling configurating terminal detection control channel information to described base station correspondence group.

Alternatively, described Serving cell can be divided into two groups, one group is the Serving cell of main serving BS MeNB, another group is the Serving cell of non-master serving BS SeNB, and described MeNB and SeNB detects the detection control channel information of the control channel of this group respectively by independent predefine or high-level signaling configurating terminal.

Alternatively, above-mentioned control channel can be the control channel of public search space.

Alternatively, in step S202, SeNB divides into groups for different subframes, and the subframe that SPCell exists public search space is divided into a group, and other subframes are divided into a group.

Alternatively, in step S204 during the relevant information of control channel of each Serving cell group that configurating terminal detects, described base station limitation arrangement is 4 to the maximum service number of cells of terminal.Thus the blind check number of times of terminal can be reduced further.

Alternatively, in step S204, described base station can limit Serving cell corresponding to the highest cell index further to be had less control channel and detects number of times, ensures that the total detection number of times in all communities is no more than predefined maximum detection number of times.Thus the blind check number of times of terminal can be reduced further.

Alternatively, in step S204, the subframe of the public search space in the corresponding main Serving cell of non-dominant base predefine terminal can be detected in described base station, does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration.

Alternatively, in step S204, the subframe of accidental access response information in the public search space of the Serving cell that non-dominant base configures predefine terminal can be detected in described base station, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration.

Alternatively, the multiple Serving cells configured under described non-dominant base are arranged at the same time group (TAG) in advance.

Alternatively, in step S204, the subframe of the public search space in the corresponding main Serving cell of non-dominant base, all or part of control information of all Serving cells in the TAG that the described public search space control information that terminal does not detect described non-dominant base configuration is correlated with predefine terminal can be detected in described base station.

Alternatively, when the corresponding main Serving cell of non-dominant base occur random access procedure or when described public search space information be correlated with TAG be main Serving cell place TAG time, in step S204, the Downlink Control Information of all Serving cells of described non-dominant base configuration and descending control information format DCI Format corresponding to ascending control information predefine terminal can not detected in base station in described subframe.

Alternatively, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, in the corresponding described TAG of described non-dominant base, all Serving cells adopt the mode of self scheduling, when then the type of the control channel position candidate quantity of configurating terminal detection and/or the control channel of terminal detection is distinguished for each grouping in described base station, in step S204, the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information predefine terminal can not detected in base station.

Alternatively, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, when then the type of the control channel position candidate quantity of configurating terminal detection and/or the control channel of terminal detection is distinguished for each grouping in described base station, in step S204, the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information predefine terminal can not detected in base station.

Alternatively, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts across carrier scheduling mode, and described scheduling carrier wave is arranged in another one and the TAG of random access procedure does not occur or does not need to carry out the TAG of random access procedure or the synchronous TAG of up maintenance, when then the type of the control channel position candidate quantity of configurating terminal detection and/or the control channel of terminal detection is distinguished for each grouping in described base station, in step S204, DCI Format corresponding to the ascending control information of corresponding Serving cell predefine terminal can not detected in base station.

Optionally, described base station predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, terminal, when described public search space detects public search space relevant information, only detects DCI Format1A or DCI Format1C.Preferably, only DCI Format1A is detected.

Fig. 3 is the flow chart of the detection method of control channel according to the embodiment of the present invention, and as shown in Figure 3, the method mainly comprises the following steps:

Step S302, terminal is divided into groups to the Serving cell that terminal detects according to Serving cell and/or subframe type;

Step S304, described terminal pins determines the detection control channel information required for detection control channel respectively to each grouping, wherein, detection control channel informations corresponding at least two groupings are not identical, described detection control channel information can comprise following one of at least: the position candidate detecting described control channel; Detect the position candidate quantity of described control channel; Detect the type of described control channel; Detect the number of times of described control channel;

Terminal can determine the relevant information of the control channel detected according to the configuration of base station and predefine.

Step S306, described terminal, according to the described detection control channel information determined for each grouping, detects the control channel of the Serving cell in each grouping.

Alternatively, in step s 302, the Serving cell of N number of described base station can be grouped into S group by terminal, wherein, N and S be greater than 0 integer, and 0<S<N+1; In this case, described terminal by independent predefine or can receive the detection control channel information that high-level signaling configures terminal detection control channel in each grouping.

Alternatively, the Serving cell of N number of described base station is grouped into S group and can comprises by described terminal: Serving cell corresponding for main serving BS MeNB is divided into one group by described terminal, and Serving cell corresponding for non-master serving BS SeNB is divided into one group.

Alternatively, in step s 304, described terminal can also the maximum service number of cells of limitation arrangement be 4.Thus the blind check number of times of terminal can be reduced further.

Alternatively, in step s 304, described terminal can also limit Serving cell corresponding to minimum cell index to be had less control channel and detects number of times, ensures that the total detection number of times in all communities is no more than predefined maximum detection number of times.

Alternatively, in step s 304, the all right predefine terminal of described terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration.

Alternatively, in step s 304, described terminal predefine terminal can also detect the subframe of accidental access response information in the public search space of the Serving cell that non-dominant base configures, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration.

Alternatively, in step s 304, described terminal predefine terminal can also detect the subframe of public search space of the corresponding main Serving cell of non-dominant base, all or part of control information of all Serving cells in the TAG that the described public search space control information that terminal does not detect described non-dominant base configuration is correlated with.

Alternatively, when the corresponding main Serving cell of non-dominant base occur random access procedure or when described public search space information be correlated with TAG be main Serving cell place TAG time, then in step s 304, described terminal predefine terminal can also not detect the Downlink Control Information of all Serving cells of described non-dominant base configuration and DCI Format corresponding to ascending control information in described subframe.

Alternatively, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, in the corresponding described TAG of described non-dominant base, all Serving cells adopt the mode of self scheduling, then in step s 304, described terminal predefine terminal can also not detect the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information.

Alternatively, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, in step s 304, described terminal predefine terminal can also not detect the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information.

Alternatively, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts across carrier scheduling mode, and described scheduling carrier wave is arranged in another one and the TAG of random access procedure does not occur or does not need to carry out the TAG of random access procedure or the synchronous TAG of up maintenance, in step s 304, described terminal predefine terminal can also not detect DCI Format corresponding to the ascending control information of corresponding Serving cell.

Optionally, described terminal predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, and terminal is when described public search space detects public search space relevant information, only detects DCI Format1A or DCI Format1C.Preferably, only DCI Format1A is detected.

Alternatively, described public search space relevant information comprises: accidental access response information (Msg2 and/or Msg4).

According to the embodiment of the present invention, additionally provide a kind of inking device of control channel, as shown in Figure 4, this device can comprise: grouping module 42, for according to serving cell types and/or subframe type, divides into groups to the Serving cell that terminal detects; Configuration module 44, for the detection control channel information for each grouping difference configurating terminal detection control channel, wherein, detection control channel informations corresponding at least two groupings are not identical, and described detection control channel information can comprise following one of at least: the position candidate detecting described control channel; Detect the position candidate quantity of described control channel; Detect the type of described control channel; Detect the number of times of described control channel.

Alternatively, described device can also comprise: control module, for configuration is restricted to 4 to the maximum service number of cells of terminal.

In specific implementation process, the inking device of control channel can be arranged in base station shown in Fig. 1, and the mode described according to the collocation method of above-mentioned control channel is configured the control channel that terminal detects, and specifically repeats no more.

According to the embodiment of the present invention, additionally provide a kind of checkout gear of control channel, as shown in Figure 5, this device can comprise: grouping module 52, for dividing into groups to the Serving cell that terminal detects according to Serving cell and/or subframe type; Determination module 54, for determining the detection control channel information of described control channel respectively for each grouping, described detection control channel information comprise following one of at least: the position candidate detecting described control channel; Detect the position candidate quantity of described control channel; Detect the type of described control channel; Detect the number of times of described control channel; Wherein, the detection control channel information of at least two grouping correspondences is not identical; Detection module 56, for the described detection control channel information determined for each grouping according to described determination module, detects the control channel of the Serving cell in each grouping.

Alternatively, described grouping module 52 for the Serving cell of N number of described base station is grouped into S group, wherein, N and S be greater than 0 integer, and 0<S<N+1; Described determination module is also for configuring the described detection control channel information of terminal detection control channel in each grouping by independent predefine or reception high-level signaling.

Alternatively, the subframe that SPCell exists public search space also for dividing into groups to the different subframe of non-master serving BS SeNB, is divided into a group by described grouping module 52, other subframes are divided into a group.

Alternatively, this device can also comprise: control module, is 4 for being restricted to the maximum service number of cells of terminal configuration.

Alternatively, described control module can also be used for limiting Serving cell corresponding to minimum cell index to be had less control channel and detects number of times, ensures that the total detection number of times in all communities is no more than predefined maximum detection number of times.

Alternatively, described configuration module 54 is also for being configured to down information one of at least by predefined mode: predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration; Predefine terminal detects the subframe of the accidental access response information in the public search space of the Serving cell that non-dominant base configures, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration; Predefine terminal is detecting the subframe of public search space of the corresponding main Serving cell of non-dominant base, all or part of control information of all Serving cells in the TAG that the described public search space control information that terminal does not detect described non-dominant base configuration is correlated with.

Alternatively, described configuration module 54 is also for being configured to down information one of at least by predefine mode: when the corresponding main Serving cell of non-dominant base occur random access procedure or when described public search space information be correlated with TAG be main Serving cell place TAG time, predefine terminal does not detect the Downlink Control Information of all Serving cells that described non-dominant base configures and DCI Format corresponding to ascending control information in described subframe; When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, in the corresponding described TAG of described non-dominant base, all Serving cells adopt the mode of self scheduling, and predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information; When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information; When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts across carrier scheduling mode, and described scheduling carrier wave is arranged in another one and the TAG of random access procedure does not occur or does not need to carry out the TAG of random access procedure or the synchronous TAG of up maintenance, predefine terminal does not detect DCI Format corresponding to the ascending control information of corresponding Serving cell; Predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, and terminal, when described public search space detects public search space relevant information, only detects DCI Format1A or DCI Format1C.

In specific implementation process, the checkout gear of control channel can be arranged in the terminal shown in Fig. 1, and the mode described according to the detection method of above-mentioned control channel detects the control channel that terminal detects, and specifically repeats no more.

Below by concrete enforcement, the technical scheme that the embodiment of the present invention provides is described.

Embodiment one

Base station side:

In the communication system of the present embodiment, there are MeNB and SeNB two double-strands meet eNB, and a double-strand meets UE, described UE eNB and UE after setting up double-strand and connecing adopts the public search space of one of predefined mode as shown in following table 5 and table 6 definition different e NB to detect number of times.

Table 5. predefine mode

The detection number of times of table 6. public search space in CA

Wherein in CA, owing to needing to detect DCI Format1C and DCI Format1A on MPcell.At this moment terminal needs to detect for 2* (4+2)=12 time altogether.Scene is connect in double-strand, owing to there is SeNB, therefore, need to detect public search space on the SPcell of SeNB, in order to ensure that total public search space is no more than the blind check number of times of R11CA, at this moment need to ensure 2* (N0+N1)+X* (N2+N3) <12 or 2* (N0+N1)+X* (N2+N3)=12.Wherein N0>0, N1>0, N2>0, N3>0, the value of X is 1 or 2, if base station predefine terminal only detects DCI Format1A on SPcell, so the value of X is 1, if base station predefine terminal detects DCI Format1A and DCI Format1C on SPcell, so the value of X is 2.

According to above-mentioned predefine mode rule, following several predefine mode (table 7 ~ table 16) can be adopted.

Table 7. predefine mode 1 (X value is 1)

Table 8. predefine mode 2 (X value is 1)

Table 9. predefine mode 3 (X value is 1)

Table 10. predefine mode 4 (X value is 1)

Table 11. predefine mode 5 (X value is 1)

Table 12. predefine mode 6 (X value is 2)

Table 13. predefine mode 7 (X value is 2)

Table 14. predefine mode 8 (X value is 2)

Table 15. predefine mode 9 (X value is 2)

Table 16. predefine mode 10 (X value is 2)

End side:

Suppose that a UE is linked on two eNB, MeNB and SeNB is respectively two double-strands and meets eNB.The public search space that described UE adopts one of following predefined mode to define MeNB and SeNB after setting up double-strand and connecing detects number of times.

Wherein in CA, because UE needs to detect DCI Format1C and DCI Format1A on MPcell.At this moment UE needs to detect for 2* (4+2)=12 time altogether.Scene is connect in double-strand, owing to there is SeNB, at this moment need to detect public search space on the SPcell of SeNB, in order to ensure that total public search space is no more than the detection number of times of R11CA, at this moment need to ensure 2* (N0+N1)+X* (N2+N3) <12 or 2* (N0+N1)+X* (N2+N3)=12.Wherein N0>0, N1>0, N2>0, N3>0, the value of X is 1 or 2, if UE predefine UE only detects DCI Format1A on SPcell, so the value of X is 1, if UE predefine terminal detects DCI Format1A and DCI Format1C on SPcell, so the value of X is 2.

According to above-mentioned predefine mode rule, identical with the mode that above-mentioned base station configures, terminal can adopt above-mentioned several predefine mode (table 7 ~ table 16).Specifically repeat no more.

Embodiment two

Base station side:

In the communication system of the present embodiment, suppose that there are MeNB and SeNB two double-strands meets eNB, there is a double-strand and meet UE, described UE eNB after setting up double-strand and connecing adopts Serving cell (carrier wave) number of the maximum support of predefine to limit detection number of times, preferred predefine, it is 4 that MeNB and SeNB is configured to UE maximum service number of cells.At this moment the number of times of UE detection control channel is 18 (24) (public search space number of times)+4*32 (UE dedicated search space number of times)=146 (152) <12 (CA mechanism public search space number of times)+5*32 (CA mechanism UE dedicated search space number of times)=172.Ensure that the maximum detection number of times of terminal that the maximum detection number of times of terminal support is no more than CA mechanism.

End side:

In the present embodiment, described UE UE after setting up double-strand and connecing adopts Serving cell (carrier wave) number of the maximum support of predefine to limit detection number of times, preferred predefine, it is 4 that UE predefine MeNB and SeNB configures to described UE maximum service number of cells.At this moment the number of times of UE detection control channel is 18 (24) (public search space number of times)+4*32 (UE dedicated search space number of times)=146 (152) <12 (CA mechanism public search space number of times)+5*32 (CA mechanism UE dedicated search space number of times)=172.Ensure that the maximum detection number of times of terminal that the maximum detection number of times of terminal support is no more than CA mechanism.

If MeNB and SeNB configures be greater than 4 to the Serving cell number of described terminal, so terminal is according to Serving cell index, from low to high, does not detect the control channel of the highest Serving cell index.

Embodiment three

Base station side:

In the communication system of the present embodiment, suppose that there are MeNB and SeNB two double-strands meets eNB, there is a double-strand and meet UE, described UE eNB after setting up double-strand and connecing adopts the detection number of times in the UE dedicated search space of the highest Cell Index of predefine restriction to ensure that UE detection control channel number of times is no more than predefined number of times.

When MeNB and the SeNB detection number of times exceeding the maximum support of terminal of altogether detecting number of times to the Serving cell public search space of a terminal configuration and special searched space, so reduce the blind check number of times in the UE dedicated search space of the highest Cell Index.

Suppose that the Serving cell number that MeNB configures described UE is 2, the Serving cell number of SeNB configuration is 3, at this moment on MeNB, support 32 times or 48 (supporting the UE of UL-MIMO) secondary terminal-specific detect, support that 12 public search spaces detect, the upper support of SeNB 32 times or 48 terminal-specific detect, support that 6 or 12 public search spaces detect, R11 terminal supports 12+32*5=172 or 12+48*5=252 at most, double-strand connects terminal and supports at most 12+6 (12)+12+32*5=178 (184) or 12+6 (12)+12+48*5=258 (264).At this moment UE dedicated search space, community, the Serving cell detection number of times limiting UE detection CellIndex maximum is needed to be 32-(178-172)=26 time or 48-(258-252)=42 time or 32-(184-172)=20 time or 48-(264-252)=36 time.

Preferably, the mode of the terminal-specific search volume of predefine limiting terminal Serving cell, base station index can be selected to realize.Preferably, in the present embodiment, maximum service cell detection space number of times splitting scheme rule is shown in table 17, preferably, can take the scheme shown in table 18 ~ table 28.

Table 17.Cell Index maximum service cell detection space number of times splitting scheme rule

Wherein, N0>0, N1>0, the value of N2>0, N3>0, X is 1 or 2, if UE predefine UE only detects DCI Format1A on SPcell, so the value of X is 1, if UE predefine terminal detects DCI Format1A and DCI Format1C on SPcell, so the value of X is 2.Satisfy condition: 2* (N0+N1+N2+N3) <32-6*X.

Table 18.Cell Index maximum service cell detection space number of times splitting scheme 1 (X=1)

Table 19.Cell Index maximum service cell detection space number of times splitting scheme 2 (X=1)

Table 20.Cell Index maximum service cell detection space number of times splitting scheme 3 (X=1)

Table 21.Cell Index maximum service cell detection space number of times splitting scheme 4 (X=1)

Table 22.Cell Index maximum service cell detection space number of times splitting scheme 4 (X=1)

Table 23.Cell Index maximum service cell detection space number of times splitting scheme 1 (X=2)

Table 24.Cell Index maximum service cell detection space number of times splitting scheme 2 (X=2)

Table 25.Cell Index maximum service cell detection space number of times splitting scheme 3 (X=2)

Table 26.Cell Index maximum service cell detection space number of times splitting scheme 4 (X=2)

Table 27.Cell Index maximum service cell detection space number of times splitting scheme 4 (X=2)

Table 28.Cell Index maximum service cell detection space number of times splitting scheme 4 (X=2)

End side

In the communication system of the present embodiment, suppose that there are MeNB and SeNB two double-strands meets eNB, there is a double-strand and meet UE, described UE UE after setting up double-strand and connecing adopts the detection number of times in the UE dedicated search space of the highest Cell Index of predefine restriction to ensure that UE detection control channel number of times is no more than predefined number of times.

When MeNB and the SeNB detection number of times exceeding the maximum support of terminal of altogether detecting number of times to the Serving cell public search space of described UE configuration and special searched space, UE reduces the blind check number of times in the UE dedicated search space of the highest Cell Index.

Suppose that the Serving cell number that MeNB configures described UE is 2, the Serving cell number of SeNB configuration is 3, at this moment UE supports 32 times or the secondary terminal-specific detection of 48 (supporting the UE of UL-MIMO) on MeNB, support that 12 public search spaces detect, UE supports 32 times on SeNB or 48 terminal-specific detect, support that 6 or 12 public search spaces detect, R11 terminal supports 12+32*5=172 or 12+48*5=252 at most, double-strand connects terminal and supports at most 12+6 (12)+12+32*5=178 (184) or 12+6 (12)+12+48*5=258 (264).At this moment UE dedicated search space, community, the Serving cell detection number of times limiting UE detection CellIndex maximum is needed to be 32-(178-172)=26 time or 48-(258-252)=42 time or 32-(184-172)=20 time or 48-(264-252)=36 time.

Preferably, the mode of the terminal-specific search volume of terminal predefine limiting terminal Serving cell index can be selected to realize.Preferably, in the present embodiment, maximum service cell detection space number of times splitting scheme rule is shown in table 17, preferably, can take the scheme shown in table 18 ~ table 28.

Wherein N0>0, N1>0, N2>0, N3>0, the value of X is 1 or 2, if UE predefine UE only detects DCI Format1A on SPcell, so the value of X is 1, if UE predefine terminal detects DCI Format1A and DCI Format1C on SPcell, so the value of X is 2.Satisfy condition: 2* (N0+N1+N2+N3) <32-6*X.

Terminal carries out the detection of control channel according to the scheme shown in above-mentioned table 18 ~ table 28.

Embodiment four

Base station side:

Base station predefine terminal is in the subframe of the public search space of the corresponding main Serving cell of the non-dominant base of detection, and terminal does not detect the terminal-specific search volume control information of all Serving cells of described non-dominant base configuration.

Suppose that there are MeNB and SeNB two double-strands meets eNB.MeNB is configured with N0 Serving cell, and SeNB is configured with N1 Serving cell, wherein N0+N1=5, and N0>0, N1>0.Base station predefine terminal is detecting the subframe of SeNB SPcell public search space, does not detect the terminal proprietary search volume control information of N1 Serving cell of SeNB configuration.

Preferably, the subframe that SeNB SPcell public search space is not detected at counterpart terminal in each Serving cell of SeNB sends described terminal proprietary control information.

End side:

Terminal predefine terminal is in the subframe of the public search space of the corresponding main Serving cell of the non-dominant base of detection, and terminal does not detect the terminal-specific search volume control information of all Serving cells of described non-dominant base configuration.

Suppose that terminal exists MeNB and SeNB two double-strands and meets eNB.MeNB gives described terminal configuration N0 Serving cell, and SeNB gives described terminal configuration N1 Serving cell, wherein N0+N1=5, and N0>0, N1>0.Described terminal predefine terminal is detecting the subframe of SeNB SPcell public search space control information, does not detect the terminal proprietary search volume control information of N1 Serving cell of SeNB configuration.

Preferably, terminal the subframe detecting the control information of SeNB SPcell public search space do not detect described terminal at SeNB all Serving cells terminal proprietary control information.

Described public search space relevant information at least comprises one of following information: accidental access response relevant information (Msg2), system message information (SI), beep-page message information (Paging).

Preferably, described public search space relevant information is accidental access response relevant information.

Described terminal proprietary control information comprises following control information one of at least: DCI Format0, DCI Format1A, DCI Format1, DCI Format1B, DCI Format1D, DCI Format2, DCI Format2A, DCI Format2B, DCI Format2C, DCI Format2D, DCI Format3, DCI Format3A, DCI Format4.

Embodiment five

When all Serving cells that non-dominant base is terminal configuration are positioned at same TAG, base station predefine terminal is in the subframe of the public search space of the corresponding main Serving cell of the non-dominant base of detection, and terminal does not detect the terminal-specific search volume control information of all Serving cells of described non-dominant base configuration.

End side

When all Serving cells that non-dominant base is terminal configuration are positioned at same TAG, terminal predefine terminal is in the subframe of the public search space of the corresponding main Serving cell of the non-dominant base of detection, and terminal does not detect the terminal-specific search volume control information of all Serving cells of described non-dominant base configuration.

Embodiment six

When all Serving cells that non-dominant base is terminal configuration are positioned at multiple TAG, base station predefine terminal is detecting the subframe of public search space of the corresponding main Serving cell of non-dominant base, all or part of control information of all Serving cells in the TAG that the described public search space control information that terminal does not detect described non-dominant base configuration is correlated with.Wherein, the TAG that public search space control information is relevant refers to, described public public search space control information is used to indicate all Serving cells control information in described TAG.

Suppose that there are MeNB and SeNB two double-strands meets eNB.MeNB is configured with N0 Serving cell, and SeNB is configured with N1 Serving cell, and SeNB is further divided into N1 Serving cell: N11 Serving cell is positioned at TAG0, N12 Serving cell is positioned at TAG1, N11+N12=N1, N11>0, N12>0.Wherein N0+N1=5, and N0>0, N1>0.Base station predefine terminal is when detecting the subframe of public search space of SeNB SPcell, if described public search space control information is relevant to TAG0, so terminal does not detect all or part of terminal-specific control information of all Serving cells in described SeNB TAG0.

Preferably, the subframe of the public search space control information that each Serving cell in SeNB TAG0 is not relevant to TAG0 on counterpart terminal detection SeNB SPcell sends the proprietary search volume control information of described terminal.

End side

When all Serving cells that non-dominant base is terminal configuration are positioned at multiple TAG, terminal predefine terminal is detecting the subframe of public search space of the corresponding main Serving cell of non-dominant base, all or part of control information of all Serving cells in the TAG that the described public search space control information that terminal does not detect described non-dominant base configuration is correlated with.Wherein, the TAG that public search space control information is relevant refers to, described public public search space control information is used to indicate all Serving cells control information in described TAG.

Embodiment seven

Base station side

In an embodiment, when there is random access procedure in the corresponding main Serving cell of non-dominant base, base station predefine terminal, when detecting the subframe of public search space of the corresponding main Serving cell of non-dominant base, does not detect all terminal proprietary control informations of the described all Serving cells of non-dominant base.

Suppose that there are MeNB and SeNB two double-strands in communication system meets eNB.MeNB is configured with N0 Serving cell, and SeNB is configured with N1 Serving cell, and SeNB is further divided into N1 Serving cell: N11 Serving cell is positioned at TAG0, N12 Serving cell is positioned at TAG1, N11+N12=N1, N11>0, N12>0.Wherein N0+N1=5, and N0>0, N1>0.Such as, in figure 6, under non-dominant base configures 4 carrier wave scenes, main Serving cell (Cell0) carrier wave and non-master Serving cell (Cell1) carrier wave are positioned at TAG0, and non-master Serving cell (Cell2) and non-master Serving cell (Cell3) is positioned at TAG1.When the TAG at SPcell or SPcell place following event occurs at least for the moment:

1. be in random access procedure;

2. do not keep uplink synchronous;

3. terminal detects the Msg2 (RA-RNTI) of SPcell or SPcell TAG in the subframe of correspondence;

4. terminal is when the subframe of correspondence detects the Msg4 information of SPcell or SPcell TAG.

Then predefine terminal does not detect all or part of terminal proprietary control information of all Serving cells in described SeNB.

Preferably, predefine terminal in base station does not detect all terminal proprietary control informations.

End side

When there is random access procedure in the corresponding main Serving cell of non-dominant base, when terminal is predefined in the subframe of the public search space detecting the corresponding main Serving cell of non-dominant base, do not detect all terminal proprietary control informations of all Serving cells of described non-dominant base.

Suppose that there are MeNB and SeNB two double-strands meets eNB.MeNB is N0 Serving cell to terminal configuration, SeNB is N1 Serving cell to terminal configuration, SeNB is further divided into N1 Serving cell: N11 Serving cell is positioned at TAG0, N12 Serving cell is positioned at TAG1, N11+N12=N1, N11>0, N12>0.Wherein N0+N1=5, and N0>0, N1>0.When the TAG at SPcell or SPcell place following event occurs at least for the moment:

1. be in random access procedure;

2. do not keep uplink synchronous;

So described terminal predefine does not detect all or part of terminal proprietary control information of all Serving cells in described SeNB.

Preferably, terminal predefine does not detect all terminal proprietary control informations.

Embodiment eight

Base station side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of predefine terminal in base station on the main Serving cell detecting non-dominant base, when Serving cells all in described TAG adopt the mode of self scheduling, then predefine terminal in base station does not detect the Downlink Control Information of the Serving cell of corresponding TAG and all DCI Format corresponding to ascending control information, described DCI format at least comprises one of following: DCI Format0, DCI Format1A, DCI Format1, DCI Format1B, DCI Format1D, DCI Format2, DCI Format2A, DCI Format2B, DCI Format2C, DCI Format2D, DCI Format3, DCI Format3A, DCI Format4.

End side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, so during the subframe of public search space control information about some TAG of terminal predefine terminal on the main Serving cell detecting non-dominant base, when Serving cells all in described TAG adopt the mode of self scheduling, then terminal predefine terminal does not detect the Downlink Control Information of the Serving cell of corresponding TAG and all DCI Format corresponding to ascending control information, described DCI format at least comprises one of following: DCI Format0, DCI Format1A, DCI Format1, DCI Format1B, DCI Format1D, DCI Format 2, DCI Format2A, DCI Format2B, DCI Format2C, DCI Format2D, DCI Format3, DCI Format3A, DCI Format4.

Embodiment nine

The present embodiment is described by two examples.

Example 1:

Base station side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, so during the subframe of public search space control information about some TAG of predefine terminal in base station on the main Serving cell detecting non-dominant base, when Serving cells all in described TAG adopt the mode of self scheduling, so predefine terminal in base station does not detect all DCI Format corresponding to the ascending control information of the Serving cell of corresponding TAG, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4.

End side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of terminal predefine terminal on the main Serving cell detecting non-dominant base, when Serving cells all in described TAG adopt the mode of self scheduling, then terminal predefine terminal does not detect all DCI Format corresponding to the ascending control information of the Serving cell of corresponding TAG, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4.

Example 2:

Base station side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, so during the subframe of public search space control information about some TAG of predefine terminal in base station on the main Serving cell detecting non-dominant base, when Serving cells all in described TAG adopt the mode of self scheduling, so predefine terminal in base station does not detect all DCI Format corresponding to the ascending control information of the Serving cell of corresponding TAG, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4, and only detect the DCI Format1A of Downlink Control Information.

End side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of terminal predefine terminal on the main Serving cell detecting non-dominant base, when Serving cells all in described TAG adopt the mode of self scheduling, then terminal predefine terminal does not detect all DCI Format corresponding to the ascending control information of the Serving cell of corresponding TAG, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4, and only detect the DCI Format1A of Downlink Control Information.

Embodiment ten

The present embodiment is described by three examples.

Example 1:

Base station side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of predefine terminal in base station on the main Serving cell detecting non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, terminal does not detect the Downlink Control Information of corresponding Serving cell and all DCI Format corresponding to ascending control information, described DCI format at least comprises one of following: DCI Format0, DCI Format1A, DCI Format1, DCI Format1B, DCI Format1D, DCI Format2, DCI Format2A, DCI Format2B, DCI Format2C, DCI Format2D, DCI Format3, DCI Format3A, DCI Format4.

End side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of terminal predefine terminal on the main Serving cell detecting non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, so terminal predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and all DCI Format corresponding to ascending control information, described DCI format at least comprises one of following: DCI Format0, DCI Format1A, DCI Format1, DCI Format1B, DCI Format1D, DCI Format2, DCI Format2A, DCI Format2B, DCI Format2C, DCI Format2D, DCI Format3, DCI Format3A, DCI Format4.

Example 2:

During the subframe of the public search space control information about some TAG on the main Serving cell of non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, terminal does not detect all DCI Format corresponding to the ascending control information of corresponding Serving cell, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4.

End side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of terminal predefine terminal on the main Serving cell detecting non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, so terminal predefine terminal does not detect all DCI Format corresponding to the ascending control information of corresponding Serving cell, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4.

Example 3:

During the subframe of the public search space control information about some TAG on the main Serving cell of non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, terminal does not detect all DCI Format corresponding to the ascending control information of corresponding Serving cell, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4, and only detect the DCI Format1A of Downlink Control Information.

End side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of terminal predefine terminal on the main Serving cell detecting non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, so terminal predefine terminal does not detect all DCI Format corresponding to the ascending control information of corresponding Serving cell, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4, and only detect the DCI Format1A of Downlink Control Information.

Embodiment 11

The present embodiment is described by three examples.

Example 1:

Base station side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of predefine terminal in base station on the main Serving cell detecting non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, terminal does not detect all DCI Format corresponding to the ascending control information of corresponding Serving cell, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4.

End side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of terminal predefine terminal on the main Serving cell detecting non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, terminal does not detect all DCI Format corresponding to the ascending control information of corresponding Serving cell, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4.

Example 2:

Base station side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of predefine terminal in base station on the main Serving cell detecting non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, terminal does not detect all DCI Format corresponding to the ascending control information of corresponding Serving cell, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4, only detect the DCI Format1A of Downlink Control Information.

End side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of terminal predefine terminal on the main Serving cell detecting non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, terminal does not detect all DCI Format corresponding to the ascending control information of corresponding Serving cell, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4, only detect the DCI Format1A of Downlink Control Information.

Example 3:

Base station side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of predefine terminal in base station on the main Serving cell detecting non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, terminal does not detect all DCI Format corresponding to the ascending control information of corresponding Serving cell, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4, and do not detect the DCI Format1A of Downlink Control Information, DCI Format1, DCI Format1B, DCI Format1D, DCI Format2, DCI Format2A, DCI Format2B, DCI Format2C, DCI Format2D.

End side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of terminal predefine terminal on the main Serving cell detecting non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, terminal does not detect all DCI Format corresponding to the ascending control information of corresponding Serving cell, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4, and do not detect the DCI Format1A of Downlink Control Information, DCI Format1, DCI Format1B, DCI Format1D, DCI Format2, DCI Format2A, DCI Format2B, DCI Format2C, DCI Format2D.

Embodiment 12

The present embodiment is described by two examples.

Example 1:

Base station side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of predefine terminal in base station on the main Serving cell detecting non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts across carrier scheduling mode, and described scheduling carrier wave is arranged in another one and the TAG of random access procedure does not occur or does not need to carry out the TAG of random access procedure or the synchronous TAG of up maintenance, terminal does not detect all DCI Format corresponding to the ascending control information of corresponding Serving cell, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4.

End side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of terminal predefine terminal on the main Serving cell detecting non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts across carrier scheduling mode, and described scheduling carrier wave is arranged in another one and the TAG of random access procedure does not occur or does not need to carry out the TAG of random access procedure or the synchronous TAG of up maintenance, do not detect all DCI Format that the ascending control information of corresponding Serving cell is corresponding, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4.

Example 2:

Base station side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of predefine terminal in base station on the main Serving cell detecting non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts across carrier scheduling mode, and described scheduling carrier wave is arranged in another one and the TAG of random access procedure does not occur or does not need to carry out the TAG of random access procedure or the synchronous TAG of up maintenance, terminal does not detect all DCI Format corresponding to the ascending control information of corresponding Serving cell, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4, only detect the DCI Format1A of Downlink Control Information.

End side

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, then during the subframe of public search space control information about some TAG of terminal predefine terminal on the main Serving cell detecting non-dominant base, when the Serving cell in the corresponding described TAG of described non-dominant base adopts across carrier scheduling mode, and described scheduling carrier wave is arranged in another one and the TAG of random access procedure does not occur or does not need to carry out the TAG of random access procedure or the synchronous TAG of up maintenance, do not detect all DCI Format that the ascending control information of corresponding Serving cell is corresponding, described DCI format at least comprises one of following: DCI Format0, DCI Format3, DCI Format3A, DCI Format4, only detect the DCI Format1A of Downlink Control Information.

Embodiment 13

Base station side:

Base station predefine terminal, when detecting the public search space control information of non-dominant base, only detects DCI Format1A or DCI Format1C, preferably, only detects DCI Format1A.

End side:

Terminal, when detecting the public search space control information of non-dominant base, only detects DCI Format1A or DCI Format1C, preferably, only detects DCI Format1A.

Preferably, described public search space control information is accidental access response information (Msg2 or RAR).

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, step shown or described by 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:

, according to serving cell types and/or subframe type, divide into groups to the Serving cell that terminal detects in base station;

Described base station is for the detection control channel information of each grouping respectively required for configurating terminal detection control channel, and wherein, detection control channel informations corresponding at least two groupings are different, described detection control channel information comprise following one of at least:

Detect the position candidate of described control channel;

Detect the position candidate quantity of described control channel;

Detect the type of described control channel;

Detect the number of times of described control channel.

2. method according to claim 1, is characterized in that,

The Serving cell that terminal detects is carried out grouping and is comprised: the Serving cell of N number of described base station is grouped into S group, wherein, N and S be greater than 0 integer, and 0<S<N+1;

When described base station is for each grouping difference configuration detection control channel information, described method also comprises: the detection control channel information that described base station is organized described base station correspondence by independent predefine signaling or high-level signaling configurating terminal.

3. method according to claim 2, it is characterized in that, described Serving cell is divided into two groups, one group is the Serving cell of main serving BS MeNB, another group is the Serving cell of non-master serving BS SeNB, and described MeNB and SeNB is respectively by independent predefine or high-level signaling configuration detection control channel information.

4. method according to claim 3, is characterized in that, described control channel is the control channel of public search space.

5. method according to claim 1, is characterized in that, base station is according to subframe type, divided into groups in the Serving cell that terminal detects, comprise: SeNB divides into groups for different subframes, the subframe that SPCell exists public search space is divided into a group, and other subframes are divided into a group.

6. method according to claim 1, is characterized in that, described base station limitation arrangement is 4 to the maximum service number of cells of terminal.

7. method according to claim 1, is characterized in that, Serving cell corresponding to the described base station the highest cell index of restriction has less control channel and detect number of times, ensures that the total detection number of times in all communities is no more than predefined maximum detection number of times.

8. method according to claim 1, it is characterized in that, described base station predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration.

9. method according to claim 1, it is characterized in that, described base station predefine terminal detects the subframe of the accidental access response information in the public search space of the Serving cell that non-dominant base configures, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration.

10. method according to claim 8 or claim 9, is characterized in that, the multiple Serving cells configured under described non-dominant base are arranged in organizes TAG at the same time in advance.

11. methods according to claim 1, it is characterized in that, described base station predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, all or part of control information of all Serving cells in the TAG that the described public search space control information that terminal does not detect described non-dominant base configuration is correlated with.

12. methods according to claim 11, it is characterized in that, when the corresponding main Serving cell of non-dominant base occur random access procedure or when described public search space information be correlated with TAG be main Serving cell place TAG time, predefine terminal does not detect the Downlink Control Information of all Serving cells that described non-dominant base configures and descending control information format DCI Format corresponding to ascending control information in described subframe.

13. methods according to claim 11, it is characterized in that, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, in the corresponding described TAG of described non-dominant base, all Serving cells adopt the mode of self scheduling, and predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCIFormat corresponding to ascending control information.

14. methods according to claim 11, it is characterized in that, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCIFormat corresponding to ascending control information.

15. methods according to claim 11, it is characterized in that, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts across carrier scheduling mode, and described scheduling carrier wave is arranged in another one and the TAG of random access procedure does not occur or does not need to carry out the TAG of random access procedure or the synchronous TAG of up maintenance, predefine terminal does not detect DCI Format corresponding to the ascending control information of corresponding Serving cell.

16. methods according to claim 11, described base station predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, terminal, when described public search space detects public search space relevant information, only detects DCI Format1A or DCI Format1C.

17. methods according to claim 11, is characterized in that, described public search space relevant information at least comprises one of following information: accidental access response relevant information Msg2, system message information SI and beep-page message information Paging.

18. methods according to claim 11, is characterized in that, described public search space relevant information comprises: accidental access response information.

The detection method of 19. 1 kinds of control channels, is characterized in that, comprising:

Terminal is divided into groups to the Serving cell that terminal detects according to Serving cell and/or subframe type;

Described terminal pins determines the detection control channel information required for detection control channel respectively to each grouping, wherein, described detection control channel information comprise following one of at least: the position candidate detecting described control channel; Detect the position candidate quantity of described control channel; Detect the type of described control channel; Detect the number of times of described control channel; The detection control channel information of at least two grouping correspondences is not identical;

Described terminal, according to the described detection control channel information determined for each grouping, detects the control channel of the Serving cell in each grouping.

20. methods according to claim 19, is characterized in that,

Terminal is divided into groups to the Serving cell that terminal detects according to Serving cell, comprising: the Serving cell of N number of described base station is grouped into S group, wherein, N and S be greater than 0 integer, and 0<S<N+1;

Described terminal pins determines the detection control channel information of the control channel detected respectively during to each grouping, described method also comprises: described terminal is by independent predefine or receive the described detection control channel information that high-level signaling configures terminal detection control channel in each grouping.

21. methods according to claim 20, it is characterized in that, the Serving cell of N number of described base station is grouped into S group and comprises by described terminal: Serving cell corresponding for main serving BS MeNB is divided into one group by described terminal, and Serving cell corresponding for non-master serving BS SeNB is divided into one group.

22. methods according to claim 21, is characterized in that, described control channel is the control channel of public search space.

23. methods according to claim 19, it is characterized in that, terminal is divided into groups to the Serving cell that terminal detects according to Serving cell and/or subframe type, comprise: the subframe that described terminal is different to SeNB is divided into groups, the subframe that SPCell exists public search space is divided into a group, other subframes are divided into a group.

24. methods according to claim 19, is characterized in that, when described terminal pins determines detection control channel information respectively to each grouping, described method also comprises: the maximum service number of cells of described terminal limitation arrangement is 4.

25. methods according to claim 19, is characterized in that, described terminal limits Serving cell corresponding to minimum cell index to be had less control channel and detect number of times, ensure that the total detection number of times in all communities is no more than predefined maximum detection number of times.

26. methods according to claim 19, it is characterized in that, described terminal predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration.

27. methods according to claim 19, it is characterized in that, described terminal predefine terminal detects the subframe of the accidental access response information in the public search space of the Serving cell that non-dominant base configures, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration.

28. methods according to claim 26 or 27, is characterized in that, the multiple Serving cells configured under described non-dominant base are arranged in organizes TAG at the same time in advance.

29. methods according to claim 19, it is characterized in that, described terminal predefine terminal is detecting the subframe of public search space of the corresponding main Serving cell of non-dominant base, all or part of control information of all Serving cells in the TAG that the described public search space control information that terminal does not detect described non-dominant base configuration is correlated with.

30. methods according to claim 29, it is characterized in that, when the corresponding main Serving cell of non-dominant base occur random access procedure or when described public search space information be correlated with TAG be main Serving cell place TAG time, predefine terminal does not detect the Downlink Control Information of all Serving cells that described non-dominant base configures and DCI Format corresponding to ascending control information in described subframe.

31. methods according to claim 29, it is characterized in that, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, in the corresponding described TAG of described non-dominant base, all Serving cells adopt the mode of self scheduling, and predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCIFormat corresponding to ascending control information.

32. methods according to claim 29, it is characterized in that, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCIFormat corresponding to ascending control information.

33. methods according to claim 29, it is characterized in that, when the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts across carrier scheduling mode, and described scheduling carrier wave is arranged in another one and the TAG of random access procedure does not occur or does not need to carry out the TAG of random access procedure or the synchronous TAG of up maintenance, predefine terminal does not detect DCI Format corresponding to the ascending control information of corresponding Serving cell.

34. methods according to claim 29, it is characterized in that, described terminal predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, and terminal is when described public search space detects public search space relevant information, only detects DCI Format1A or DCI Format1C.

35. methods according to claim 29, is characterized in that, described public search space relevant information at least comprises one of following information: accidental access response relevant information Msg2, system message information SI and beep-page message information Paging.

36. methods according to claim 29, is characterized in that, described public search space relevant information comprises: accidental access response information.

The inking device of 37. 1 kinds of control channels, is characterized in that, comprising:

Grouping module, for according to serving cell types and/or subframe type, divides into groups to the Serving cell that terminal detects;

Configuration module, for for the detection control channel information of each grouping respectively needed for configurating terminal detection control channel, wherein, detection control channel informations corresponding at least two groupings are different, and described detection control channel information comprise following one of at least:

Detect the position candidate of described control channel;

Detect the position candidate quantity of described control channel;

Detect the type of described control channel;

Detect the number of times of described control channel.

38., according to device according to claim 37, is characterized in that,

Described grouping module is used for the Serving cell of N number of described base station to be grouped into S group, wherein, N and S be greater than 0 integer, and 0<S<N+1;

Described configuration module is also for by independent predefine signaling or the high-level signaling configurating terminal detection control channel information to the detection control channel of described base station correspondence group.

39., according to device according to claim 37, is characterized in that, described grouping module is used for dividing into groups to the different subframe of non-master serving BS SeNB, and the subframe that SPCell exists public search space is divided into a group, and other subframes are divided into a group.

40., according to device according to claim 37, is characterized in that, described device also comprises: control module, for configuration is restricted to 4 to the maximum service number of cells of terminal.

41. devices according to claim 40, it is characterized in that, described control module also has less control channel detect number of times for limiting Serving cell corresponding to the highest cell index, ensures that the total detection number of times in all communities is no more than predefined maximum detection number of times.

42. according to device according to claim 37, it is characterized in that, described configuration module also for by below predetermined configuration one of at least:

Predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration;

Predefine terminal detects the subframe of the accidental access response information in the public search space of the Serving cell that non-dominant base configures, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration;

Predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, all or part of control information of all Serving cells in the TAG that the described public search space control information that terminal does not detect described non-dominant base configuration is correlated with.

43. device according to claim 42, is characterized in that, described configuration module is also for by information one of at least below predetermined configuration:

When the corresponding main Serving cell of non-dominant base occur random access procedure or when described public search space information be correlated with TAG be main Serving cell place TAG time, predefine terminal does not detect the Downlink Control Information of all Serving cells that described non-dominant base configures and descending control information format DCI Format corresponding to ascending control information in described subframe;

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, in the corresponding described TAG of described non-dominant base, all Serving cells adopt the mode of self scheduling, and predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information;

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information;

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts across carrier scheduling mode, and described scheduling carrier wave is arranged in another one and the TAG of random access procedure does not occur or does not need to carry out the TAG of random access procedure or the synchronous TAG of up maintenance, predefine terminal does not detect DCI Format corresponding to the ascending control information of corresponding Serving cell;

Predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, and terminal, when described public search space detects public search space relevant information, only detects DCI Format1A or DCI Format1C.

The checkout gear of 44. 1 kinds of control channels, is characterized in that, comprising:

Grouping module, for dividing into groups to the Serving cell that terminal detects according to Serving cell and/or subframe type;

Determination module, for determining the detection control channel information of described control channel respectively for each grouping, described detection control channel information comprise following one of at least: the position candidate detecting described control channel; Detect the position candidate quantity of described control channel; Detect the type of described control channel; Detect the number of times of described control channel; Wherein, the detection control channel information of at least two grouping correspondences is not identical;

Detection module, for the described detection control channel information determined for each grouping according to described determination module, detects the control channel of the Serving cell in each grouping.

45. devices according to claim 44, is characterized in that,

Described determination module is also for configuring the described detection control channel information of terminal detection control channel in each grouping by independent predefine or reception high-level signaling.

46. devices according to claim 44, it is characterized in that, the subframe that SPCell exists public search space also for dividing into groups to the different subframe of non-master serving BS SeNB, is divided into a group by described grouping module, other subframes are divided into a group.

47. devices according to claim 44, is characterized in that, also comprise: control module, are 4 for being restricted to the maximum service number of cells of terminal configuration.

48. devices according to claim 47, it is characterized in that, described control module also has less control channel detect number of times for limiting Serving cell corresponding to minimum cell index, ensures that the total detection number of times in all communities is no more than predefined maximum detection number of times.

49. devices according to claim 44, is characterized in that, described configuration module is also for being configured to down information one of at least by predefined mode:

Predefine terminal detects the subframe of the public search space in the corresponding main Serving cell of non-dominant base, and terminal does not detect terminal-specific search volume or the terminal-specific control information of all Serving cells of described non-dominant base configuration;

Predefine terminal is detecting the subframe of public search space of the corresponding main Serving cell of non-dominant base, all or part of control information of all Serving cells in the TAG that the described public search space control information that terminal does not detect described non-dominant base configuration is correlated with.

50. devices according to claim 49, is characterized in that, described configuration module is also for being configured to down information one of at least by predefine mode:

When the corresponding main Serving cell of non-dominant base occur random access procedure or when described public search space information be correlated with TAG be main Serving cell place TAG time, predefine terminal does not detect the Downlink Control Information of all Serving cells that described non-dominant base configures and DCI Format corresponding to ascending control information in described subframe;

When the corresponding main Serving cell of non-dominant base is not in random access procedure or up maintenance is synchronous, when the Serving cell in the corresponding described TAG of described non-dominant base adopts the mode across carrier dispatching, described Serving cell is the carrier wave that is scheduled, and the scheduling carrier wave of execution cost Serving cell is arranged in another one and is carrying out the TAG of random access procedure or described scheduling carrier wave and the carrier wave that is scheduled is arranged in same described TAG, predefine terminal does not detect the Downlink Control Information of corresponding Serving cell and DCI Format corresponding to ascending control information;

The detection system of 51. 1 kinds of control channels, is characterized in that, comprising: base station and terminal, and wherein, described base station comprises the device according to any one of claim 37 to 43, and described terminal comprises the device according to any one of claim 44 to 51.