CN105610556A

CN105610556A - Downlink information sending method, downlink information receiving method, downlink information sending device and downlink information receiving device

Info

Publication number: CN105610556A
Application number: CN201410626093.9A
Authority: CN
Inventors: 石靖; 夏树强; 戴博; 方惠英; 刘锟; 陈宪明; 张雯
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2014-11-07
Filing date: 2014-11-07
Publication date: 2016-05-25
Anticipated expiration: 2034-11-07
Also published as: CN105610556B; WO2016070675A1

Abstract

The invention discloses a downlink information sending method, a downlink information receiving method, a downlink information sending device and a downlink information receiving device. The downlink information sending method comprises the steps of grouping channels carrying different downlink information and allocating the grouped channels to narrow-band resources to send the channels. The problem that downlink information cannot be received in limited-bandwidth scenarios in the related technologies is solved, and correct reception of downlink information is ensured.

Description

Downlink information transmission, downlink information method of reseptance and device

Technical field

The present invention relates to the communications field, in particular to downlink information send, downlink information method of reseptance andDevice.

Background technology

Machine type communication (MachineTypeCommunication, referred to as MTC) user terminal (UserEquipment, is called for short UE), be called again machine to machine (MachinetoMachine is called for short M2M)User communication device is the main application form of current Internet of Things. In recent years, due to Long Term Evolution (Long-TermEvolution, referred to as LTE)/advanced long-term evolution system (Long-TermEvolutionAdvance, letterBe called LTE-Advance or LTE-A) spectrum efficiency high, increasing mobile operator selectsLTE/LTE-A is as the evolution direction of system of broadband wireless communication. MTC multiple types based on LTE/LTE-AData service also will be more attractive.

In existing LTE/LTE-A system, what first terminal received at down direction is primary and secondary synchronization signals(PrimarySynchronizationSignal/SecondarySynchronizationSig nal, referred to asPSS/SSS) and broadcast channel (PhysicalBroadcastChannel, referred to as PBCH), be all positioned at and beSystem bandwidth center. LTE/LTE-A system call mode is transmitted based on each subframe dynamic dispatching,Each subframe all can be transmitted different control channels. In LTE/LTE-A, define Physical Downlink Control Channel(PhysicalDownlinkControlChannel, referred to as PDCCH) and enhancing physical down control letterRoad (EnhancedPhysicalDownlinkControlChannel, referred to as EPDCCH). PDCCH andEPDCCH all can dispatch instruction physics downlink traffic channel (PhysicalDownlinkSharedChannel,Referred to as PDSCH) and physical uplink Traffic Channel (PhysicalUplinkSharedChannel, referred to asPUSCH) carry out descending and transmission upstream data information. Fig. 1 is according to the LTE/LTE-A in correlation techniqueThe schematic diagram of each channel resource in system, as shown in Figure 1, in existing LTE/LTE-A system descending subframeIt is as follows that each channel resource takies situation: PDCCH takies front several OFDMs of full bandwidth(OrthogonalFrequencyDivisionMultiplexing, referred to as OFDM) symbol, EPDCCHTake part bandwidth with PDSCH in frequency division multiplexing mode, i.e. part Physical Resource Block (PhysicalResourceBlock, referred to as PRB) resource, be positioned on PDCCH OFDM symbol afterwards. Down control channelAdopt blind Detecting, terminal is attempted with different polymerization grades and Candidate Set demodulation descending in certain search volumeControl channel. As shown in Table 1 and Table 2, search volume is corresponding by different polymerization grades in existing search volumeCandidate Set composition, is divided into publicly-owned search volume (Commonsearchspace, referred to as CSS) and user specialThere is search volume (UE-specificsearchspace, referred to as USS), respectively the publicly-owned letter in corresponding dispatching cellThe control information of breath and scheduling are for the control information of Proprietary Information. When terminal demodulation control channel, need trial solutionAdjust each Candidate Set until demodulation is correct, otherwise think and do not receive one's own control channel.

PDCCH search volume is as shown in table 1.

Table 1

(USS) is as shown in table 2 in EPDCCH search volume.

Table 2

PDCCH/EPDCCH for bearing downlink control information (DownlinkControlInformation,Referred to as DCI), comprising: uplink and downlink schedule information, and uplink power control information. Conventionally MTCTerminal can be by obtaining DCI at each subframe demodulation PDCCH/EPDCCH channel, so as to obtain rightThe information that the demodulation of PDSCH is required and the scheduling indication information of PUSCH.

In MTC application terminal, a significant demand is that cost is lower. The method reducing costs at present itOne for reducing the reception bandwidth of MTC terminal, and for example, in LTE system, ordinary terminal still uses system bandwidthAs receiving bandwidth, and MTC terminal is used 1.4MHz as receiving bandwidth. MTC terminal is used arrowband to connectWhen take-up is wide, the total resources that can use are very limited. The narrow-band reception bandwidth using when MTC terminal is less thanWhen system bandwidth, PDCCH can not work, in the time using EPDCCH, and can during due to initial access networkReceive synchronizing signal and broadcast channel in midbandwidth, but receive afterwards the publicly-owned message in community and control accordinglyPosition, the arrowband terminal of channel processed is not known, unless that system bandwidth equals that MTC terminal supports just is narrowBand bandwidth. Therefore in the time that system bandwidth is larger, need to determine control channel required while initially access and correspondingThe position, arrowband at Traffic Channel place. To ensure that system bandwidth is fully as the MTC terminal of Bandwidth Reduction is used.

For the problem that cannot receive downlink information under Bandwidth-Constrained scene in correlation technique, not yet propose at presentEffectively solution.

Summary of the invention

The invention provides downlink information transmission, downlink information method of reseptance and device, to be at least with in the technology of passUnder wide limitation scene, cannot receive the problem of downlink information.

According to an aspect of the present invention, provide a kind of downlink information sending method, having comprised: will carry differentThe channel of downlink information divides into groups; Channel allocation after grouping is sent to narrowband resource.

Further, by the channel allocation after grouping to send on described narrowband resource comprise following one of at least:Channel allocation in same grouping is sent to identical narrowband resource, the channel allocation in different grouping is arrivedIn different time domain resource in identical narrowband resource, send.

Further, described time-domain resource comprise following unit one of at least: subframe, field, radio frames.

Further, described narrowband resource is the resource in N the arrowband being partitioned in system broad, itsIn, N is more than or equal to 1.

Further, each described narrowband resource is: 5 Physical Resource Block PRB, 6PRB, 15PRB or25PRB。

Further, described downlink information comprise following one of at least: synchronizing information, broadcast message, community public affairsThere are control information, the dispatching downlink user of information, downlink user Proprietary Information, the publicly-owned information in dispatching cell proprietaryThe control information of information, the control information of dispatching uplink user special information.

Further, by the channel allocation after grouping to send on described narrowband resource comprise following one of at least:The channel of carrying synchronizing information and/or broadcast message sends on the arrowband at system bandwidth center; Use by letterOn the definite narrowband resource of order configuration or predefined mode, send following one of at least: the publicly-owned information in carrying community,The control information of downlink user Proprietary Information, the publicly-owned information in dispatching cell, the control of dispatching downlink user special informationThe channel of the channel of information processed, the control information of dispatching uplink user special information.

Further, described signal deployment comprise following one of at least: broadcast signaling, system message signaling, thingReason layer signaling; Described predefined mode comprises and is identified for the publicly-owned information in community, downlink user Proprietary Information, tuneThe control information of the publicly-owned information in degree community, control information and the dispatching uplink user of dispatching downlink user special informationThe available arrowband of the transmission of one or more information in the control information of Proprietary Information.

Further, in described same grouping, comprise carrying community publicly-owned message, downlink user Proprietary Information,The control information of the publicly-owned information in dispatching cell, the control information of dispatching downlink user special information and/or schedulingThe channel of the control information of up user special information, the narrowband assignments information comprising in broadcast message is indicatedOr according to sending on predefined different narrowband resources, wherein, the community sending on different narrowband resources is publicly-ownedMessage is different.

Further, the difference of the publicly-owned message in described community comprises: the community public affairs that same type identical content is differentHave message, or the different publicly-owned message in community of type, wherein, described type comprises: SIB, RAR orPaging Paging.

Further, on different described narrowband resources, can send and independently carry synchronizing information and/or broadcastThe channel of information.

Further, in described same grouping, comprise the control of the publicly-owned message in carrying community, the publicly-owned information in dispatching cellThe channel of information processed, or in same grouping, comprise bearing downlink user special information, dispatched users Proprietary InformationThe channel of control information, the narrowband assignments information comprising in broadcast message instruction or predefined different arrowbandIn resource, send.

Further, in described same grouping, comprise control information and the scheduling use of the publicly-owned information in carrying dispatching cellThe channel of the control information of family Proprietary Information, sends in arrowband, center; Or, when broadcast message comprises fingerShow in the situation of this grouping narrowband assignments information, on the narrowband resource of described narrowband assignments information instruction, send orSend in predefined arrowband; In same grouping, comprise the carrying publicly-owned information in community and/or the proprietary letter of downlink userThe channel of breath sends on the narrowband resource by control channel scheduling instruction.

Further, in described same grouping, comprise the control of the publicly-owned message in carrying community, the publicly-owned information in dispatching cellThe channel of the control information of information processed and dispatched users Proprietary Information, or in same grouping, comprise that carrying community is publicly-ownedMessage, the proprietary message of user, the control information of the publicly-owned information in dispatching cell and the control of dispatched users Proprietary InformationThe channel of information sends on arrowband, center; Or, when broadcast message comprises this grouping narrowband assignments informationIn situation, on the narrowband resource of described narrowband assignments information instruction, send or send in predefined arrowband; WithIn one grouping, comprise the channel of the carrying publicly-owned information in community and user special information, or only comprise and hold in same groupingCarry the channel of user special information, or in same group, only comprise the channel of the publicly-owned information in carrying community, controllingOn the narrowband resource of channel dispatch instruction, send.

Further, the channel that carries all downlink informations sends on same narrowband resource.

Further, when the information in described grouping sends in the acentric arrowband of system bandwidth, what use is narrowQuantity with resource is for being more than or equal to 1.

Further, the search volume, channel place of the control information of the described downlink user Proprietary Information of carrying schedulingBefore connecting foundation, RRC determines by predefined or fixing or signaling mode.

Further, described signaling bear in system information block SIB or accidental access response RAR, wherein,The content except predefined parameter is only indicated in signaling bit territory.

Further, the search volume pair of the channel of the control information of described carrying dispatching downlink user special informationBe identical in different user, wherein, identical described search volume comprises: user's dedicated search space and public affairsHave search volume to overlap completely, or the proprietary search volume of user that RRC connects before setting up is identical.

Further, after described search volume is determined, be implicit point of each user equipment (UE) by predefined parameterJoin the proprietary search volume of user of this subscriber equipment.

Further, definite the comprising of the proprietary search volume of described user: by first selecting narrowband resource to select againIn this narrowband resource, the mode of PRBs is determined, or, directly in full bandwidth, select the mode of PRBs to determine.

Further, the search volume, channel place of the control information of described carrying dispatching downlink user special informationBe only the proprietary search volume of user and RRC connect configure by same way before and after setting up definite, wherein,Described same way is predefined or fixed form.

Further, dispatch the control information of described downlink user Proprietary Information or dispatch the publicly-owned information in described communityControl information in the described downlink user Proprietary Information of instruction or the shared frequency domain of the publicly-owned information in described community money, use the Part I instruction arrowband occupied information of a bit field or bit field when in the source, another bit field orPRB occupied information in the Part II instruction arrowband of a bit field.

The control information of further, dispatching described up user special information is indicating described up user proprietaryWhen the frequency domain resource of arrowband, information place, at least comprise a complete detection reference signal (SoundingReferenceSignal, referred to as SRS).

Further, the control information of described dispatched users Proprietary Information is according to PRB corresponding to maximum system bandwidthQuantity is determined RA territory, or described control information comes according to PRB quantity corresponding to current system bandwidthDetermine RA territory, or, PRB number corresponding to maximum bandwidth that described control information receives according to subscriber equipmentAmount is determined RA territory.

Further, dispatch the control information of described user special information or dispatch the control of the publicly-owned information in described communityInformation processed in the time of the described user special information of instruction or the shared time domain sub-frame resources of the publicly-owned information in described community,Use the offset numbers of a bit field instruction with respect to described control information place subframe.

Further, the dispense needles of described arrowband is divided low cost MTC terminal and coverage enhancement MTC terminalNot Pei Zhi, all channels in the each grouping of wherein said low cost MTC terminal all with described coverage enhancement MTCTerminal is used different arrowbands, or, the local channel in the each grouping of described low cost MTC terminal with described inCoverage enhancement MTC terminal is used different arrowbands.

Further, carry described broadcast message, the publicly-owned message in described community, described user special information, tuneSpend the control information of the publicly-owned information in described community, the channel of dispatching the control information of described user special information makesWith pilot tone be demodulated reference signal DMRS, combine use adopt when the proprietary pilot tone CRS in community with belowOne of formula: DMRS pilot tone is not added precoding, is used the information in the channel of described DMRS pilot tone not addAdd precoding; DMRS pilot tone is used predefined precoding, uses in the channel of described DMRS pilot toneInformation is used predefined described precoding; DMRS pilot tone is used precoding, uses described DMRS pilot toneData channel in described user special information use described precoding, wherein, precoding information by schedulingThe control information of described user special information is indicated.

Further, between described CRS port and DMRS port, there are mapping relations, wherein, described in reflectThe relation of penetrating at least obtains according to port mapping matrix computations.

Further, the pilot tone of described use is during for DMRS, combines and while using CRS, adopts time division multiplex sideFormula, part subframe is only used DMRS pilot tone, and all the other subframes are only used CRS pilot tone or use DMRS simultaneouslyWith CRS pilot tone.

According to the embodiment of the present invention on the other hand, also provide a kind of downlink information method of reseptance, having comprised:While receiving downlink information, on narrowband resource, grouping receives the channel of the different downlink informations of carrying.

Further, on described narrowband resource grouping receive carrying different downlink informations described channel comprise withUnder one of at least: on identical narrowband resource, receive the channel in same grouping, in identical narrowband resourceIn different time-domain resource, receive the channel in different grouping.

Further, described time-domain resource at least comprise following unit one of at least: subframe, field, wirelessFrame.

Further, described narrowband resource is the resource in N the arrowband being partitioned in system bandwidth, itsIn, N is more than or equal to 1.

Further, each described narrowband resource is 5PRB, 6PRB, 15PRB or 25PRB.

Further, on narrowband resource grouping receive carrying different downlink informations channel comprise following at least itOne: at least receive carrying synchronizing information in the arrowband at system bandwidth center on some cycles or predefined subframeAnd/or the down channel of broadcast message; The publicly-owned information in carrying community, downlink user Proprietary Information, dispatching cellThe control information of publicly-owned information, the control information of dispatching downlink user special information and the proprietary letter of dispatching uplink userThe narrow bandpass one of at least using in the channel of control information of breath crosses signal deployment or predefined mode is trueFixed.

Further, described signal deployment comprise following one of at least: broadcast signaling, system message signaling, thingReason layer signaling; Described predefined mode comprises and is identified for the publicly-owned information in community, downlink user Proprietary Information, tuneThe control information of the publicly-owned information in degree community, control information and the dispatching uplink user of dispatching downlink user special informationThe available arrowband of the reception of one or more information in the control information of Proprietary Information.

Further, comprise the publicly-owned message in carrying community, downlink user Proprietary Information, scheduling in described same groupThe control information of the publicly-owned information in community, the control information of dispatching downlink user special information and/or dispatching uplink are usedThe channel of the control information of family Proprietary Information, according to the narrowband assignments information comprising in broadcast message indicated orOn predefined different narrowband resources, receive, wherein, the publicly-owned message in community receiving on different narrowband resources isDifferent.

Further, the difference of the publicly-owned message in described community comprises: publicly-owned the disappearing in community that type identical content is differentBreath, or the different publicly-owned message in community of type, wherein, described type comprises: SIB, RAR or pagingPaging。

Further, on different described narrowband resources, can receive and independently carry synchronizing information and/or broadcastThe channel of information.

Further, comprise the control of the publicly-owned message in carrying community, the publicly-owned information in dispatching cell in described same groupThe channel of information, or in same group, comprise the control of bearing downlink user special information, dispatched users Proprietary InformationThe channel of information processed, and according to the narrowband assignments information comprising in broadcast message indicated or predefined different narrowIn band resource, receive.

Further, comprise control information and the dispatched users of the publicly-owned information in carrying dispatching cell in described same groupThe channel of the control information of Proprietary Information, in center narrow-band reception, or, when broadcast message comprises this group of instructionWhen narrowband assignments information, receive according to the instruction of described narrowband assignments information or in predefined narrow-band reception;In same group, comprise the channel of the carrying publicly-owned information in community and/or downlink user Proprietary Information, adjust at control channelOn the narrowband resource of degree instruction, accept.

Further, comprise the control of the publicly-owned message in carrying community, the publicly-owned information in dispatching cell in described same groupThe channel of the control information of information and dispatched users Proprietary Information, or in same group, comprising carrying, community is publicly-owned disappearsBreath, the proprietary message of downlink user, the control information of the publicly-owned information in dispatching cell and the control of dispatched users Proprietary InformationThe channel of information processed, in center narrow-band reception; Or, in the time that broadcast message comprises this group narrowband assignments information byReceive or in predefined narrow-band reception according to the instruction of described narrowband assignments information; In same group, comprise carryingThe channel of the publicly-owned information in community and downlink user Proprietary Information, or it is special in same group, only to comprise bearing downlink userThere is the channel of information, or in same group, only comprise the channel of the publicly-owned information in carrying community, adjusted by control channelOn the narrowband resource of degree instruction, receive.

Further, the channel that carries all downlink informations all receives in same arrowband.

Further, the search volume, channel place of the control information of carrying dispatching downlink user special information existsRRC connects before setting up and determines by predefined or fixing or signaling mode.

Further, described signaling bear is in SIB or RAR, and wherein, only indicate except pre-in signaling bit territoryContent beyond defined parameters.

Further, after described search volume is determined, imply the use of determining each subscriber equipment by predefined parameterProprietary search volume, family.

Further, the control of the publicly-owned information of the control information of described dispatching downlink user special information or dispatching cellInformation processed, in the time of the shared frequency domain resource of the publicly-owned information of indicating downlink user special information or community, is used whereinPart I instruction arrowband occupied information, another bit field or a bit field of bit field or bit fieldPart II instruction arrowband in concrete PRB occupied information.

The control information of further, dispatching described up user special information is indicating described up user proprietaryWhen the frequency domain resource of arrowband, information place, at least comprise a complete SRS,

Further, the control of the publicly-owned information of the control information of described dispatched users Proprietary Information or dispatching cell letterBreath, in the time of the shared time domain sub-frame resources of the publicly-owned information of indicating user Proprietary Information or community, uses a bitTerritory, instruction is with respect to the offset numbers of this control information place subframe.

Further, described carrying broadcast message, the publicly-owned message in community, user special information, dispatching cell public affairsThe pilot tone that has the channel of the control information of control information, the dispatched users Proprietary Information of information to use is DMRS,One of use when CRS in the following ways combining: DMRS pilot tone is not added precoding, and use should simultaneouslyInformation in the channel of pilot tone is not added precoding yet; DMRS pilot tone is used predefined precoding, makes simultaneouslyAlso use predefined precoding by the information in the channel of this pilot tone; DMRS pilot tone is used precoding, simultaneouslyUse the user special information in the data channel of this pilot tone also to use precoding, precoding information is by adjusting simultaneouslyThe control information of degree user special information is indicated.

According to a further aspect of the invention, also provide a kind of downlink information dispensing device, having comprised: grouping module,For the channel of the different downlink informations of carrying is divided into groups; Transport module, for by grouping after channel allocationTo narrowband resource, send.

Further, described transport module comprise following one of at least: the first transmission unit, for by same pointChannel allocation in group sends to identical narrowband resource; Second transmission unit, for by different groupingChannel allocation sends on the different time domain resource in identical narrowband resource.

Further, described transport module comprises: the 3rd transmission unit, and for carrying synchronizing information and/or wideThe channel of broadcasting information sends on the arrowband at system bandwidth center; Determine transmission unit, pass through signaling for usingOn configuration or the definite narrowband resource of predefined mode, send following one of at least: the publicly-owned information in carrying community, underThe control information of row user special information, the publicly-owned information in dispatching cell, the control of dispatching downlink user special informationThe channel of the channel of information, the control information of dispatching uplink user special information.

According to a further aspect in the invention, also provide a kind of downlink information receiving system, having comprised: receiver module,For in the time receiving downlink information, on narrowband resource, grouping receives the channel of the different downlink informations of carrying.

By the present invention, adopt the channel of the different downlink informations of carrying is divided into groups, the channel after grouping is dividedBe fitted on narrowband resource and send, solved in the technology of pass and cannot receive asking of downlink information under Bandwidth-Constrained sceneTopic, has ensured the correct reception of downlink information.

Brief description of the drawings

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

Fig. 1 is according to the schematic diagram of each channel resource in the LTE/LTE-A system in correlation technique;

Fig. 2 is according to the flow chart of the downlink information sending method of the embodiment of the present invention;

Fig. 3 is according to the block diagram of the downlink information dispensing device of the embodiment of the present invention;

Fig. 4 is the block diagram one of downlink information dispensing device according to the preferred embodiment of the invention;

Fig. 5 is the block diagram two of downlink information dispensing device according to the preferred embodiment of the invention;

Fig. 6 is showing in different narrow band transmission by downlink transfer information block according to the preferred embodiment of the inventionIntention one;

Fig. 7 is showing in different narrow band transmission by downlink transfer information block according to the preferred embodiment of the inventionIntention two;

Fig. 8 is showing in different narrow band transmission by downlink transfer information block according to the preferred embodiment of the inventionIntention three;

Fig. 9 is showing in different narrow band transmission by downlink transfer information block according to the preferred embodiment of the inventionIntention four;

Figure 10 is showing in different narrow band transmission by downlink transfer information block according to the preferred embodiment of the inventionIntention five.

Detailed description of the invention

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

A kind of downlink information sending method is provided in the present embodiment, and Fig. 2 is according under the embodiment of the present inventionThe flow chart of row method for sending information, as shown in Figure 2, this flow process comprises the steps:

Step S202, divides into groups the channel of the different downlink informations of carrying;

Step S204 sends the channel allocation after grouping to narrowband resource.

By above-mentioned steps, after the channel of the different downlink informations of carrying is divided into groups, by by Bandwidth-ConstrainedUnder scene, the channel allocation after grouping is sent to narrowband resource, solved Bandwidth-Constrained field in the technology of passUnder scape, cannot receive the problem of downlink information, ensure the correct reception of downlink information.

Channel allocation after grouping can be had to the mode on this narrowband resource a variety of, optional real at oneExecute in example, by the channel allocation after grouping to send on this narrowband resource can comprise following one of at least: will be withChannel allocation in one grouping sends to identical narrowband resource, and the channel allocation in different grouping is arrived identicalNarrowband resource in different time domain resource on send. Wherein, this time-domain resource comprise following unit at least itOne: subframe, field, radio frames. This narrowband resource is in N the arrowband being partitioned in system broadResource, wherein, N is more than or equal to 1. Each this narrowband resource is: 5 Physical Resource Block PRB, 6PRB, 15PRBOr 25PRB. Above-mentioned downlink information comprise following one of at least: synchronizing information, broadcast message, communityControl information, the dispatching downlink user of publicly-owned information, downlink user Proprietary Information, the publicly-owned information in dispatching cell are specialThere are the control information of information, the control information of dispatching uplink user special information.

In another optional embodiment, the channel allocation after grouping is sent and can be wrapped to this narrowband resourceDraw together following one of at least: the channel of carrying synchronizing information and/or broadcast message is on the arrowband at system bandwidth centerSend; Use by one of sending on signal deployment or the definite narrowband resource of predefined mode below at least: holdCarry the publicly-owned information in community, downlink user Proprietary Information, the control information of the publicly-owned information in dispatching cell, dispatching downlinkThe channel of the channel of the control information of user special information, the control information of dispatching uplink user special information.

Above-mentioned signal deployment can be in many ways, and in an optional embodiment, this signal deployment can wrapDraw together following one of at least: broadcast signaling, system message signaling, physical layer signaling; This predefined mode comprises reallyFixed for the publicly-owned information in community, downlink user Proprietary Information, the control information of the publicly-owned information in dispatching cell, schedulingA kind of in the control information of the control information of downlink user Proprietary Information and dispatching uplink user special information orThe available arrowband of the transmission of much information.

In following several modes to the channel allocation after grouping is described to sending on this narrowband resource.

In same grouping, comprise the publicly-owned message in carrying community, downlink user Proprietary Information, the publicly-owned letter in dispatching cellThe control information of breath, control information and/or the proprietary letter of dispatching uplink user of dispatching downlink user special informationThe channel of control information of breath, the narrowband assignments information that comprises in broadcast message indicated or according to predefinedDifferent narrowband resources on send, wherein, the publicly-owned message in community sending on different narrowband resources is different.Wherein the difference of this publicly-owned message in community comprises: the publicly-owned message in community that same type identical content is different, orThe publicly-owned message in community that type is different, wherein, described type comprises: SIB, RAR or paging Paging.On this different narrowband resources, can send the channel that independently carries synchronizing information and/or broadcast message.

In same grouping, comprise the channel of the control information of the publicly-owned message in carrying community, the publicly-owned information in dispatching cell,Or in same grouping, comprise the letter of the control information of bearing downlink user special information, dispatched users Proprietary InformationRoad, sends on the narrowband assignments information comprising instruction or predefined different narrowband resource in broadcast message.

In same grouping, comprise the control information of carrying dispatching cell publicly-owned information and dispatched users Proprietary InformationThe channel of control information, sends in arrowband, center; Or, when broadcast message comprises this grouping arrowband of instructionIn the situation of assignment information, on the narrowband resource of this narrowband assignments information instruction, send or in predefined arrowbandSend; In same grouping, comprise the channel of the carrying publicly-owned information in community and/or downlink user Proprietary Information, byOn the narrowband resource of control channel scheduling instruction, send.

The control information and the scheduling that in same grouping, comprise the publicly-owned message in carrying community, the publicly-owned information in dispatching cell are usedThe channel of the control information of family Proprietary Information, or in same grouping, comprise that carrying community publicly-owned message, user are proprietaryThe channel of the control information of the control information of message, the publicly-owned information in dispatching cell and dispatched users Proprietary Information,Center sends on arrowband; Or, when broadcast message comprises in the situation of this grouping narrowband assignments information, narrow at thisOn narrowband resource with assignment information instruction, send or send in predefined arrowband; In same grouping, comprise carryingThe channel of the publicly-owned information in community and user special information, or in same grouping, only comprise carrying user special informationChannel, or in same group, only comprise the channel that carries the publicly-owned information in community, that indicates in control channel scheduling is narrowIn band resource, send.

In the case of the above-mentioned all downlink informations of channel bearing, on same narrowband resource, send,The channel that carries all downlink informations sends on same narrowband resource.

In above-mentioned mode, when the information in grouping sends in the acentric arrowband of system bandwidth, what use is narrowQuantity with resource is for being more than or equal to 1. The channel of the control information of this downlink user Proprietary Information of carrying schedulingSearch volume, place is determined by predefined or fixing or signaling mode before RRC connects foundation. This letterOrder is carried in system information block SIB or accidental access response RAR, and wherein, signaling bit territory is only indicated and removedContent beyond predefined parameter. The search of the channel of the control information of this carrying dispatching downlink user special informationSpace is identical for different user, and wherein, this identical search volume comprises: user's dedicated search spaceOverlap completely with publicly-owned search volume, or the proprietary search volume of user that RRC connects before setting up is identical. After this search volume is determined, be implicit this subscriber equipment that distributes of each user equipment (UE) by predefined parameterThe proprietary search volume of user. Wherein, definite mode of the proprietary search volume of user can have a variety of, oneIn individual optional embodiment, determining of this proprietary search volume of user can comprise: by first selecting narrowband resourceSelect again the mode of PRBs in this narrowband resource to determine, or, the direct side of selecting PRBs in full bandwidthFormula is determined.

The search volume, channel place of the control information of carrying dispatching downlink user special information is only that user is proprietarySearch volume and connect and configure before and after setting up definitely by same way at RRC, wherein, this same way isPredefine or fixed form. Dispatch the control information of this downlink user Proprietary Information or dispatch the publicly-owned information in this communityControl information in the time of the shared frequency domain resource of this publicly-owned information in downlink user Proprietary Information Huo Gai community of instruction,Use Part I instruction arrowband occupied information, another bit field or a ratio of a bit field or bit fieldPRB occupied information in the Part II instruction arrowband in special territory. Dispatch the control letter of this up user special informationBreath, in the time of the frequency domain resource of this arrowband, up user special information place of instruction, at least comprises a complete SRS,Wherein, no matter system bandwidth is how many, the control information of this dispatched users Proprietary Information is according to maximum system bandwidthCorresponding PRB quantity is determined RA territory, or described control information is corresponding according to current system bandwidthPRB quantity is determined RA territory, or, the maximum bandwidth correspondence that described control information receives according to subscriber equipmentPRB quantity determine RA territory. Dispatch the control information of this user special information or dispatch this community publicly-ownedThe control information of information is in the shared time domain subframe money of the publicly-owned information in instruction this user special information Huo Gai community, use the offset numbers of a bit field instruction with respect to this control information place subframe when in the source.

The dispense needles of arrowband configures respectively low cost MTC terminal and coverage enhancement MTC terminal, wherein shouldAll channels in the each grouping of low cost MTC terminal all use different narrow from this coverage enhancement MTC terminalBand, or local channel and this coverage enhancement MTC terminal in the each grouping of this low cost MTC terminal makeWith different arrowbands.

Carry this broadcast message, the publicly-owned message in this community, this user special information, dispatch the publicly-owned information in this communityControl information, dispatch pilot tone that the channel of the control information of this user special information uses for demodulation is with reference to letterNumber DMRS, one of combining while using the proprietary pilot tone CRS in community in the following ways: DMRS pilot tone is notAdd precoding, use the information in the channel of this DMRS pilot tone not add precoding; DMRS pilot tone makesUse predefined precoding, use the information in the channel of this DMRS pilot tone to use predefined this precoding;DMRS pilot tone is used precoding, uses this user special information in the data channel of this DMRS pilot tone to makeUse this precoding, wherein, precoding information is indicated by the control information of dispatching this user special information.Between this CRS port and DMRS port, have mapping relations, wherein, described mapping relations are at least according to endMouth mapping matrix calculates. , combine while using CRS and adopt the time-division multiple during for DMRS in the pilot tone usingBy mode, part subframe is only used DMRS pilot tone, and all the other subframes are only used CRS pilot tone or use simultaneouslyDMRS and CRS pilot tone.

The embodiment of the present invention also provides a kind of downlink information method of reseptance, comprising: in the time receiving downlink information,On narrowband resource, grouping receives the channel of the different downlink informations of carrying.

The receive mode of channel that grouping receives the different downlink informations of carrying on narrowband resource can have a variety of,In an optional embodiment, on this narrowband resource, this channel of the different downlink informations of grouping reception carrying canWith comprise following one of at least: on identical narrowband resource, receive the channel in same grouping, identical narrowWith receiving the channel in different grouping in time-domain resource different in resource. Wherein, this time-domain resource at least comprisesFollowing unit one of at least: subframe, field, radio frames. This narrowband resource for to be partitioned in system bandwidthN arrowband in resource, wherein, N is more than or equal to 1. Each this narrowband resource be 5PRB, 6PRB,15PRB or 25PRB. Above-mentioned downlink information comprise following one of at least: synchronizing information, broadcast message,Control information, the dispatching downlink of the publicly-owned information in community, downlink user Proprietary Information, the publicly-owned information in dispatching cell are usedThe control information of family Proprietary Information, the control information of dispatching uplink user special information.

In another optional embodiment, on narrowband resource, grouping receives the channel of the different downlink informations of carryingComprise following one of at least: at least connect on some cycles or predefined subframe in the arrowband at system bandwidth centerReceive the down channel of carrying synchronizing information and/or broadcast message; Carrying community publicly-owned information, downlink user are proprietaryThe control information of information, the publicly-owned information in dispatching cell, control information and the scheduling of dispatching downlink user special informationThe narrow bandpass one of at least using in the channel of the control information of up user special information is crossed signal deploymentOr predefined mode is determined.

Above-mentioned signal deployment can comprise following one of at least: broadcast signaling, system message signaling, physical layerSignaling; This predefined mode comprises and is identified for the publicly-owned information in community, downlink user Proprietary Information, dispatching cellThe control information of publicly-owned information, the control information of dispatching downlink user special information and the proprietary letter of dispatching uplink userThe available arrowband of the reception of one or more information in the control information of breath.

In same group, comprise carrying community publicly-owned message, downlink user Proprietary Information, the publicly-owned information in dispatching cellThe control of the control information of control information, dispatching downlink user special information and/or dispatching uplink user special informationThe channel of information processed, according to the narrowband assignments information comprising in broadcast message indicated or in predefined differenceOn narrowband resource, receive, wherein, the publicly-owned message in community receiving on different narrowband resources is different. This communityThe difference of publicly-owned message comprises: the publicly-owned message in community that type identical content is different, or the different community of typePublicly-owned message, wherein, described type comprises: SIB, RAR or paging Paging. This different arrowband moneyOn source, can receive the channel that independently carries synchronizing information and/or broadcast message.

In same group, comprise the channel of the control information of the publicly-owned message in carrying community, the publicly-owned information in dispatching cell, orThe channel of the control information that comprises bearing downlink user special information, dispatched users Proprietary Information in same group of person,And receive on indicated or predefined different narrowband resource according to the narrowband assignments information comprising in broadcast message.

In same group, comprise the control information of the publicly-owned information in carrying dispatching cell and the control of dispatched users Proprietary InformationThe channel of information processed, in center narrow-band reception, or, when broadcast message comprises this group narrowband assignments information of instructionIn time, receives or in predefined narrow-band reception according to the instruction of this narrowband assignments information; In same group, comprise and holdCarry the channel of the publicly-owned information in community and/or downlink user Proprietary Information, in the arrowband money of control channel scheduling instructionOn source, accept.

In same group, comprise control information and the dispatched users of the publicly-owned message in carrying community, the publicly-owned information in dispatching cellThe channel of the control information of Proprietary Information, or in same group, comprise carrying community publicly-owned message, downlink user is specialThere is the channel of the control information of message, the publicly-owned information in dispatching cell and the control information of dispatched users Proprietary Information,In center narrow-band reception; Or, in the time that broadcast message comprises this group narrowband assignments information, believe according to this narrowband assignmentsThe instruction of breath receives or in predefined narrow-band reception; In same group, comprise carrying community publicly-owned information and underThe channel of row user special information, or in same group, only comprise the channel of bearing downlink user special information, orIn same group of person, only comprise the channel of the publicly-owned information in carrying community, at the narrowband resource by control channel scheduling instructionUpper reception.

In the case of the above-mentioned all downlink informations of channel bearing, receive in same arrowband, carry instituteThere is the channel of downlink information all in same arrowband, to receive.

In above-mentioned several modes, when the information in grouping sends in the acentric arrowband of system bandwidth, institute is usedThe quantity of narrowband resource for being more than or equal to 1. The letter of the control information of carrying dispatching downlink user special informationSearch volume, place, road is determined by predefined or fixing or signaling mode before RRC connects foundation. ShouldSignaling bear is in SIB or RAR, and wherein, the content except predefined parameter is only indicated in signaling bit territory.

The search volume of the channel of the control information of carrying dispatching downlink user special information for different user isIdentical, wherein, this identical search volume comprises: user's dedicated search space and publicly-owned search volume are completeOverlap, or the proprietary search volume of user that RRC connects before setting up is identical. Determine in search volumeAfter, imply the proprietary search volume of user of determining each subscriber equipment by predefined parameter. Wherein, user is proprietaryThe definite of search volume comprises: by first selecting narrowband resource to select the mode of PRBs in this narrowband resource true againFixed, or, directly in full bandwidth, select the mode of PRBs to determine. The proprietary letter of this carrying dispatching downlink userThe search volume, channel place of control information of breath be only the proprietary search volume of user and before RRC connects foundationConfigured and determined by same way afterwards, wherein, this same way is predefined or fixed form.

The control information of the publicly-owned information of the control information of dispatching downlink user special information or dispatching cell is in instructionWhen the shared frequency domain resource of the publicly-owned information in downlink user Proprietary Information or community, use one of them bit field orThe Part I instruction arrowband occupied information of bit field, the Part II of another bit field or a bit field refers toShow concrete PRB occupied information in arrowband. Dispatching the control information of this up user special information is indicating on thisWhen the frequency domain resource of arrowband, row user special information place, at least comprise a complete SRS, wherein, this tuneThe control information of degree user special information is determined RA territory according to PRB quantity corresponding to maximum system bandwidth,Or described control information is determined RA territory according to PRB quantity corresponding to current system bandwidth, or,PRB quantity corresponding to maximum bandwidth that described control information receives according to subscriber equipment is determined RA territory. ShouldThe control information of the publicly-owned information of the control information of dispatched users Proprietary Information or dispatching cell is proprietary at indicating userWhen the shared time domain sub-frame resources of the publicly-owned information in information or community, use a bit field, instruction is with respect to thisThe offset numbers of control information place subframe. The dispense needles of arrowband is to low cost MTC terminal and coverage enhancement MTCTerminal configures respectively, wherein all channels in the each grouping of this low cost MTC terminal all with this coverage enhancementMTC terminal is used different arrowbands, or, local channel and this in the each grouping of this low cost MTC terminalCoverage enhancement MTC terminal is used different arrowbands.

The control of this carrying broadcast message, the publicly-owned message in community, user special information, the publicly-owned information in dispatching cellThe pilot tone that the channel of the control information of information, dispatched users Proprietary Information uses is DMRS, is combining useWhen CRS one of in the following ways: DMRS pilot tone is not added precoding, uses the channel of this pilot tone simultaneouslyIn information do not add precoding yet; DMRS pilot tone is used predefined precoding, uses this pilot tone simultaneouslyInformation in channel is also used predefined precoding; DMRS pilot tone is used precoding, uses this pilot tone simultaneouslyData channel in user special information also use precoding, simultaneously precoding information is proprietary by dispatched usersThe control information of information is indicated. Between this CRS port and DMRS port, there are mapping relations, wherein,These mapping relations at least obtain according to port mapping matrix computations. The pilot tone using during for DMRS, is combined and is madeDuring with CRS, adopt time division multiplexing mode, part subframe is only used DMRS pilot tone, and all the other subframes are only usedCRS pilot tone or simultaneously use DMRS and CRS pilot tone.

The embodiment of the present invention also provides a kind of transmission processing device, and this device is used for realizing above-described embodiment and excellentSelect embodiment, carried out repeating no more of explanation. As used below, term " module " canRealize the combination of software and/or the hardware of predetermined function. Although the described device of following examples preferably withSoftware is realized, but hardware, or the realization of the combination of software and hardware also may and be conceived.

Fig. 3 is according to the block diagram of the downlink information dispensing device of the embodiment of the present invention, as shown in Figure 3, comprising:Grouping module 32 and transport module 34, briefly explain modules below.

Grouping module 32, for dividing into groups the channel of the different downlink informations of carrying;

Transport module 34, for sending the channel allocation after grouping to narrowband resource.

Fig. 4 is the block diagram one of downlink information dispensing device according to the preferred embodiment of the invention, as shown in Figure 4,This transport module 34 comprise following one of at least:

The first transmission unit 42, for sending the channel allocation in same grouping to identical narrowband resource;

The second transmission unit 44, for by the channel allocation in different grouping to identical narrowband resource notWith sending in time-domain resource.

Fig. 5 is the block diagram two of downlink information dispensing device according to the preferred embodiment of the invention, as shown in Figure 5,This transport module 34 comprises:

The 3rd transmission unit 52, for the channel that carries synchronizing information and/or broadcast message at system bandwidth centerArrowband on send;

Determine transmission unit 54, for using by signal deployment or the definite narrowband resource of predefined modeSend following one of at least: the publicly-owned information in carrying community, downlink user Proprietary Information, the publicly-owned information in dispatching cellChannel, the dispatching uplink user special information of control information of control information, dispatching downlink user special informationThe channel of control information.

The embodiment of the present invention also provides a kind of downlink information receiving system, comprising: receiver module, and for connecingWhile receiving downlink information, on narrowband resource, grouping receives the channel of the different downlink informations of carrying.

Below in conjunction with optional embodiment, the embodiment of the present invention is further described.

In order to solve effective transmission of Bandwidth-Constrained scene downstream signal, this optional embodiment has proposed a kind of being suitable for, mainly solve under in narrowband systems, unlike signal carries out the method for different channels transmitted in packets in narrowband systemsThe problem that when row transmission, resource is used, guarantee works in the demand of the terminal device proper communication in narrowband systems.

Base station sends when downlink information, channel packet that will the different downlink informations of carrying, and by same groupingChannel allocation is transmitted to identical narrowband resource, or the channel allocation in different grouping to identical arrowband is providedIn source, in different time-domain resource, transmit. Wherein, this downlink information at least comprises one of following information: synchronously letterThe control information of breath, broadcast message, the publicly-owned information in community, user special information, the publicly-owned information in dispatching cell,The control information of dispatched users Proprietary Information. Wherein, this narrowband resource is the N being partitioned in system bandwidthResource in individual arrowband, resource optimal selecting 6PRB, 15PRB in each arrowband, 25PRB. Wherein, this timeTerritory resource at least comprises following unit: subframe, field, radio frames. By the channel allocation in same grouping to phaseWith narrowband resource on transmit, or by the channel allocation in different grouping when different in identical narrowband resourceTerritory transmitted over resources further comprises: terminal at least in arrowband, system bandwidth center with some cycles or predefinedIn subframe, receive the down channel of the synchronous and/or broadcast message of carrying, the publicly-owned information in carrying community, user are proprietaryThe channel of the control information of information, the publicly-owned information in dispatching cell, the control information of dispatched users Proprietary Information makesWith narrow bandpass cross signal deployment or predefined mode and determine.

Transmit on narrowband resource by following several modes, be further described below.

In the time that broadcast message comprises narrowband assignments information, comprise the publicly-owned message in carrying community, Yong Huzhuan in same groupThere is the channel of the control information of control information, the dispatched users Proprietary Information of information, the publicly-owned information in dispatching cell,And according to sending on the indicated different narrowband resources of this narrowband assignments information, wherein on different narrowband resources, sendThe publicly-owned message difference in community.

In the time that this broadcast message comprises narrowband assignments information, comprise the publicly-owned message in carrying community, scheduling in same groupThe channel of the control information of the publicly-owned information in community, or in same group, comprise carrying user special information, scheduling useThe channel of the control information of family Proprietary Information, and according on the indicated different narrowband resources of this narrowband assignments informationSend.

In same group, comprise the control information of the publicly-owned information in carrying dispatching cell and the control of dispatched users Proprietary InformationThe channel of information processed, send in arrowband, center or this broadcast message comprise instruction when this group narrowband assignments information according toThe instruction of this narrowband assignments information sends. And in same group, comprise carrying the publicly-owned information in community and user proprietaryThe channel of information, its narrowband resource using is by control channel scheduling instruction.

In same group, comprise control information and the dispatched users of the publicly-owned message in carrying community, the publicly-owned information in dispatching cellThe channel of the control information of Proprietary Information, or in same group, comprise carrying community publicly-owned message, user is proprietary disappearsThe channel of breath, the control information of the publicly-owned information in dispatching cell and the control information of dispatched users Proprietary Information, inWhen narrow-minded band sends or this broadcast message comprises this group narrowband assignments information according to the instruction of this narrowband assignments informationSend. And in same group, comprise the channel that carries the publicly-owned information in community and user special information, or sameIn group, only comprise the channel that carries user special information, or in same group, only comprise carrying community publicly-owned informationChannel, its narrowband resource using is by control channel scheduling instruction.

Comprise above-mentioned all downlink informations at channel, carry the channel of all downlink informations all sameIn one arrowband, send.

The search volume, channel place of the control information of carrying dispatched users Proprietary Information is before RRC connects foundationDetermine by predefined or fixing or signaling mode, this signaling bear is in SIB or RAR. This passes throughPredefined or fixed form is determined the search volume of the channel of the control information of this carrying dispatched users Proprietary InformationOverlap completely for comprise the proprietary search volume of UE and publicly-owned search volume and region simultaneously. True in this search volumeAfter fixed, base station is as empty for the implicit mapping of each UE obtains the proprietary search of each UE in UEID by some parametersBetween.

The search volume, channel place of the control information of carrying dispatched users Proprietary Information is only the proprietary search of userSpace and RRC connect set up before and after all by predefined or fixed form definite.

The control information of the publicly-owned information of the control information of dispatched users Proprietary Information or dispatching cell is at indicating userWhen the shared frequency domain resource of the publicly-owned information in Proprietary Information or community, use one of them bit field or bit fieldPart I instruction arrowband occupied information, in the Part II instruction arrowband of another bit field or a bit fieldConcrete PRB occupied information.

The control information of the publicly-owned information of the control information of dispatched users Proprietary Information or dispatching cell is at indicating userWhen the shared time domain sub-frame resources of the publicly-owned information in Proprietary Information or community, use a bit field, instruction relativelyIn the offset numbers of this control information place subframe.

Narrowband assignments can configure respectively for low cost MTC terminal and coverage enhancement MTC terminal.

Control information, the scheduling of the publicly-owned message in carrying community, user special information, the publicly-owned information in dispatching cell are usedThe pilot tone that the channel of the control information of family Proprietary Information uses is DMRS, in the time combining use CRS, adoptsOne of following mode: DMRS pilot tone is not added precoding is not used information in the channel of this pilot tone also not simultaneouslyAdd precoding; DMRS pilot tone uses predefined open loop MIMO precoding, uses this pilot tone simultaneouslyInformation in channel is also used predefined open loop MIMO precoding; DMRS pilot tone is used closed-loop MIMOPrecoding is used the user special information in the data channel of this pilot tone also to use closed-loop MIMO to prelist simultaneouslyCode, precoding information is indicated by the control information of dispatched users Proprietary Information simultaneously.

By above-mentioned optional embodiment, can solve under the MTC terminal that works in part arrowband in system bandwidthRow resource is used problem, and then ensures that base station is terminal service as much as possible normal transmission data, also simultaneouslyCan solve initial user proprietary search volume fuzzy problem and combine uses different pilot tones to promote transmission performance.

Base station sends when downlink information, channel packet that will the different downlink informations of carrying, and by same groupingChannel allocation is transmitted to identical narrowband resource, or the channel allocation in different grouping to identical arrowband is providedIn source, in different time-domain resource, transmit. Wherein this downlink information at least comprises one of following information: synchronizing information,Broadcast message, the publicly-owned information in community, user special information, the control information of the publicly-owned information in dispatching cell, schedulingThe control information of user special information. Wherein this narrowband resource is N the arrowband being partitioned in system bandwidthIn resource, resource optimal selecting 5PRB, 6PRB in each arrowband, 15PRB, 25PRB. Particularly, existWhile cutting apart narrowband resource in system bandwidth resource, cut apart with the narrowband resource of fixing, as preferred 5PRB, 6PRB,15PRB, 25PRB, the PRB resource of the not enough above-mentioned number in system bandwidth edge can be closed with arrowband, inferior edgeAnd or become separately and be less than the little arrowband of above-mentioned number or give up as boundary belt. Wherein this time-domain resource is at least wrappedDraw together following unit: subframe, field, radio frames.

Channel allocation in same grouping is transmitted to identical narrowband resource, or by the channel in different groupingBeing dispensed to time-domain resource different in identical narrowband resource uploads and defeatedly further comprises that terminal is at least at system bandArrowband, wide center is to receive carrying synchronously and/or the descending letter of broadcast message in some cycles or predefined subframeRoad, control information, the scheduling of the publicly-owned information in carrying community, user special information, the publicly-owned information in dispatching cell are usedThe narrow bandpass that the channel of the control information of family Proprietary Information uses crosses signal deployment or predefined mode is determined.

It is synchronous that terminal at least receives carrying in arrowband, system bandwidth center on some cycles or predefined subframeAnd/or the down channel of broadcast message, as the cycle interval with 400ms receives subframe 0,5 centers in radio framesSynchronous and broadcast channel on arrowband, can receive other in position, identical arrowband of next 400ms cycleInformation; Or the synchronous and broadcast channel in predefined reception odd number radio frames on subframe 0,5 arrowbands, center,In even number radio frames, position, identical arrowband can receive other information. The publicly-owned information in carrying community, Yong HuzhuanThere is the channel institute of the control information of control information, the dispatched users Proprietary Information of information, the publicly-owned information in dispatching cellThe narrow bandpass using crosses signal deployment or predefined mode is determined, wherein signal deployment comprises broadcast signaling, systemMessage signaling, physical layer signaling; Predefined mode comprise determine some available arrowband for wherein one or moreThe transmission of information.

Fig. 6 is showing in different narrow band transmission by downlink transfer information block according to the preferred embodiment of the inventionIntention one, as shown in Figure 6, in the time that broadcast message comprises narrowband assignments information, comprises carrying community in same groupThe control information of publicly-owned message, user special information, the publicly-owned information in dispatching cell, dispatched users Proprietary InformationThe channel of control information, and according to sending on the indicated different narrowband resources of this narrowband assignments information, wherein notWith the publicly-owned message difference in the community sending on narrowband resource.

Broadcast message is MTC dedicated broadcast information, and wherein indicated information at least comprises SFN and narrowband assignmentsInformation, the MTC terminal of narrowband assignments information bit territory instruction different service types use different arrowbands orPredefined arrowband 1,2,3,4,5,6 be respectively used to different service types (intelligent meter data recording, monitoring, medical treatment,Intelligent transportation, emergency communication, Smart Home) MTC terminal use different arrowbands, as different systemsMessage; Or the publicly-owned message in dissimilar community of the MTC terminal of instruction identical services type is used differentArrowband, as system message and RAR message. Need to first receive SS/MIB and narrowband assignments information,In the time existing position, arrowband to change demand, UE obtains new narrowband assignments letter by demodulation subframe 0 arrowband, centerBreath. Now narrowband assignments information can be pointed out the arrowband that some are available, and the terminal of different service types converses certainlyOwn available arrowband receives SIB and proprietary message on this arrowband.

Fig. 7 is showing in different narrow band transmission by downlink transfer information block according to the preferred embodiment of the inventionIntention two, as shown in Figure 7, in the time that broadcast message comprises narrowband assignments information, comprises carrying community in same groupThe channel of the control information of publicly-owned message, the publicly-owned information in dispatching cell, or it is special in same group, to comprise carrying userThere is the channel of the control information of information, dispatched users Proprietary Information, and indicated according to this narrowband assignments informationOn different narrowband resources, send.

User special information and corresponding control are positioned at other arrowbands, now in arrowband, center (preferably) or in advanceThe control information of definition arrowband 2 publicly-owned information in receiving scheduling community and corresponding publicly-owned message (this subframe scheduling orAcross subframe scheduling), if resource is not enough certainly, (arrowband, center is Bearer Control and data simultaneously) dispatchThe control information of the publicly-owned information in community also can the publicly-owned information in dispatching cell be positioned at other arrowbands (across subframe scheduling)Or without the position, arrowband of controlling the publicly-owned information in the predefined community of transmission means. First receive SS/MIB and/Or narrowband assignments information, now narrowband assignments information can be indicated or it by the information increasing in MIBAfter SIB instruction. When existing position, arrowband to change when demand, UE by demodulation subframe 0 arrowband, center orSystem message in other arrowbands, subframe center obtains new narrowband assignments information. Publicly-owned for which small areaThe reception of message also can be adjusted to other arrowbands flexibly by narrowband assignments information, avoids arrowband, center unavailableOr the inadequate situation of resource, described arrowband quantity equals 1 or be greater than 1.

Fig. 8 is showing in different narrow band transmission by downlink transfer information block according to the preferred embodiment of the inventionIntention three, as shown in Figure 8, the control information and the scheduling that comprise the publicly-owned information in carrying dispatching cell in same group are usedThe channel of the control information of family Proprietary Information, sends in arrowband, center or this broadcast message comprises this group arrowband of instructionWhen assignment information, send according to the instruction of this narrowband assignments information. And it is publicly-owned to comprise carrying community in same groupThe channel of information and user special information, its narrowband resource using is by control channel scheduling instruction.

The control information of the publicly-owned information in receiving scheduling community and/or the control information of dispatched users Proprietary Information are whole(if there is no the control information of the publicly-owned information in dispatching cell, adopt without controlling transmission operation little in arrowband, centerThe publicly-owned information in district is in predefined arrowband location transmission) or broadcast message instruction or predefined other are one or moreArrowband, and the data of dispatching are positioned at other arrowbands, now must be in conjunction with across subframe scheduling, across subframe scheduling time domainSub-frame interval can be 1,2 or other optional values, now no longer needs first to receive narrowband assignments information. RightConsider that in which arrowband uses more flexibly, when as unavailable in midbandwidth or resource is inadequate, Ke YiIn MIB, add the instruction of control/traffic assignments and adjust flexibly control information and/or the scheduling of the publicly-owned information in dispatching cellThe arrowband that the control information of user special information can be used or the predefined arrowband that distributes control/business to use, described inArrowband quantity equals 1 or be greater than 1.

Fig. 9 is showing in different narrow band transmission by downlink transfer information block according to the preferred embodiment of the inventionIntention four, as shown in Figure 9, comprises the control of the publicly-owned message in carrying community, the publicly-owned information in dispatching cell in same groupThe channel of the control information of information processed and dispatched users Proprietary Information, or it is publicly-owned in same group, to comprise carrying communityMessage, the proprietary message of user, the control information of the publicly-owned information in dispatching cell and the control of dispatched users Proprietary InformationThe channel of information, send in arrowband, center or this broadcast message while comprising this group narrowband assignments information according to this arrowbandThe instruction of assignment information sends. And in same group, comprise the carrying publicly-owned information in community and user special informationChannel, or in same group, only comprise the channel that carries user special information, or in same group, only comprise carryingThe channel of the publicly-owned information in community, its narrowband resource using is by control channel scheduling instruction.

The control information of the publicly-owned information in receiving scheduling community and/or the control information of dispatched users Proprietary Information are whole(if there is no the control information of the publicly-owned information in dispatching cell, adopt without controlling transmission operation little in arrowband, centerThe publicly-owned information in district is in predefined arrowband location transmission) and while still having resources left, community, bearing part is publicly-owned simultaneouslyInformation and/or user special information. And the data of dispatching are positioned at other arrowbands, now must be in conjunction with adjusting across subframeDegree, can be 1,2 or other optional values across subframe scheduling time domain sub-frame interval, now no longer needs first to connectNarrow band assignment information. Consider that for which arrowband uses more flexibly, as unavailable in midbandwidth or moneyWhen source is inadequate, can in MIB, adds control/traffic assignments instruction and adjust flexibly the publicly-owned information in dispatching cellThe arrowband that the control information of control information and/or dispatched users Proprietary Information can be used or the predefined control/business of distributingAvailable arrowband, described arrowband quantity equals 1 or be greater than 1.

Figure 10 is showing in different narrow band transmission by downlink transfer information block according to the preferred embodiment of the inventionIntention five, as shown in figure 10, the channel that carries all downlink informations all sends in same arrowband.

Equal the situation of narrow band bandwidth in system bandwidth, do not need narrowband assignments information. Now control information and numberIt is believed that breath is multiplexing in arrowband. The search volume, channel place of the control information of this carrying dispatched users Proprietary InformationBefore RRC connects foundation, determine by predefined or fixing or signaling mode, this signaling bear is at SIBOr in RAR. USS owing to not having high-level signaling to issue, now determines USS institute before RRC connects foundationNeed parameter to know, need to determine by predefined or fixing or signaling mode, this signaling bear existsIn SIB or RAR, specifically comprise time-frequency domain resources position, polymerization grade and Candidate Set, the transmission side of USSOne or more in formula. Wherein the content except predefined parameter is only indicated in signaling bit territory, passes as predefinedDefeated mode is localized transmission, and polymerization grade and Candidate Set are fixing to be selected L=2 and has accordingly 6 Candidate Sets,Now signaling is only indicated the time-frequency domain resources position of USS. The control information of this carrying dispatched users Proprietary InformationThe search volume of channel be identical for different user. Described identical search volume comprises that user is specialOverlap completely with publicly-owned search volume with search volume or RRC be connected set up before the proprietary search volume of userIdentical. Particularly, in the time there is CSS, the publicly-owned message in community is used corresponding control information to carry outScheduling instruction, now CSS and USS can think same search volume, the polymerization that wherein CSS selectsGrade and Candidate Set quantity are less than polymerization grade and the Candidate Set quantity that USS selects, and both same polymericThe corresponding Candidate Set original position of grade is identical; In the time not there is not CSS, the publicly-owned message in community is usedControl-less transmission means, the USS before now RRC connection is set up is identical for each UE,Be equivalent to CSS configuration but now there is no CSS. This search volume determine after, base station by some parameters asUEID distributes and obtains the proprietary search volume of each UE for each UE is implicit. Particularly, terminal is according to someAs UEID connects before setting up at RRC, which is partly the USS of oneself to parameter in definite USS, for example canCalculated the corresponding Candidate Set original position of each polymerization grade difference in USS with UEID. This carryingThe search volume, channel place of the control information of dispatched users Proprietary Information be only the proprietary search volume of user andRRC is configured and is determined by same way before and after connecting foundation, and described same way is predefined or fixed form.Particularly, for MTCUE, consider to simplify and process, USS relevant parameter does not use signaling, adopts pre-Position and the transmission means of definition, the USS configuration after initial USS configuration connects foundation with RRC is all identical,Receive EPDCCH in predefined position in predefined mode. For example: in each arrowband, use 1 or 2Individual PRB is as control channel region, all the other PRB user data channel regions; Or only in arrowband, feel at easeRow's control channel, Traffic Channel is all placed on other narrow band transmission, in conjunction with across subframe scheduling.

Control information in the publicly-owned information of control information or dispatching cell of dispatched users Proprietary Information is used in instructionWhen the shared frequency domain resource of the publicly-owned information in family Proprietary Information or community, use one of them bit field or bit fieldPart I instruction arrowband occupied information, the Part II instruction arrowband of another bit field or a bit fieldIn concrete PRB occupied information. In the time adopting across subframe scheduling, the corresponding data letter of control information scheduling instructionWhen breath, first by the Part I instruction arrowband occupied information of a bit field or a bit field, as with inNarrow-minded band be benchmark to high-frequency arrowband or the narrow skew of low frequency, first bit represents to be offset still to high-frequencyTo frequency offset, a back to back x bit represents to be offset number, and x is less than or equal to 3; Another bit field orConcrete PRB occupied information in the Part II instruction arrowband of a bit field. Further, this dispatched users is specialThere is the control information of the publicly-owned information of control information or dispatching cell of information in indicating user Proprietary Information or communityWhen the shared time domain sub-frame resources of publicly-owned information, use a bit field, instruction is with respect to this control information instituteIn the offset numbers of subframe. Particularly, in the time adopting across subframe scheduling, the corresponding data of control information scheduling instructionWhen information, use the offset numbers of a bit field instruction with respect to this control information place subframe, preferably skewValue is 1,2,3,4.

Narrowband assignments can configure respectively for low cost MTC terminal and coverage enhancement MTC terminal. WhereinAll channels in the each grouping of low cost MTC terminal all use different arrowbands from coverage enhancement MTC terminal,Or the local channel in the each grouping of low cost MTC terminal and coverage enhancement MTC terminal are used different narrowBand. Particularly, because coverage enhancement MTC terminal conventionally need to be carried out weight to each channel in the time using arrowbandMultiple transmission, therefore by coverage enhancement MTC terminal from low cost MTC terminal separate configuration in different arrowbandsMore be conducive to the less phase mutual interference of terminal of demand separately, ensure the money of the proper communication of low cost MTC terminalSource is used. Concrete, mode one be the equal and coverage enhancements of all channels in the each grouping of low cost MTC terminalMTC terminal is used different arrowbands, and in described various packet mode, the contained equal ensuring coverage of channel increasesStrong MTC terminal is used independent arrowband, preferentially ensures the arrowband demand of low cost MTC terminal; Mode twoFor the local channel in the each grouping of low cost MTC terminal uses different arrowbands from coverage enhancement MTC terminal,For example now low cost MTC terminal is used identical narrow band transmission community publicly-owned with coverage enhancement MTC terminalInformation, and low cost MTC terminal is used different Zhai Da transmission user proprietary from coverage enhancement MTC terminalInformation.

This publicly-owned message in carrying community, user special information, the control information of the publicly-owned information in dispatching cell, schedulingThe pilot tone that the channel of the control information of user special information uses is DMRS, in the time combining use CRS, adoptsOne of with the following methods: DMRS pilot tone is not added precoding, use information in the channel of this pilot tone also simultaneouslyDo not add precoding; Particularly, now terminal combine that the pilot tone using when CRS estimates can be directly and DMRSPilot tone estimated result merge, do not need to add extra precoding information. DMRS pilot tone is used predefinedPrecoding is used the information in the channel of this pilot tone also to use predefined precoding simultaneously; Particularly, nowFirst terminal is combined while using CRS needs the CRS pilot value to receiving to add predefined open loop MIMOPrecoding, now precoding is the equal of known, merges afterwards with the channel estimation results of DMRS again.DMRS pilot tone is used precoding, uses the user special information in the data channel of this pilot tone also to use in advance simultaneouslyCoding, precoding information is indicated by the control information of dispatched users Proprietary Information simultaneously. Particularly, thisTime terminal combine to use when CRS and first need the CRS pilot value to receiving to add predefined closed-loop MIMOPrecoding, now precoding learns by control information, afterwards again with the channel estimation results of DMRSMerge.

Further, between described CRS port and DMRS port, there are mapping relations, wherein, this mappingRelation at least obtains according to port mapping matrix computations.

Particularly, whole set of DMRS pilot tone port used be D={7,8,9,10,11,12,13,14}, CRS pilot tone port used all set is C={0,1,2,3}, described port mapping matrix W isPredefined matrix. For example: CW=D,

W = [\begin{matrix} 1 & 0 & 0 & 0 & 1 & 0 & 0 & 0 \\ 0 & 1 & 0 & 0 & 0 & 1 & 0 & 0 \\ 0 & 0 & 1 & 0 & 0 & 0 & 1 & 0 \\ 0 & 0 & 0 & 1 & 0 & 0 & 0 & 1 \end{matrix}],

While using DMRS port 7,Correspondence is combined use CRS port 0; Or

W = [\begin{matrix} 1 & 1 & 0 & 0 & 1 & 1 & 0 & 0 \\ 1 & 1 & 0 & 0 & 0 & 0 & 1 & 1 \\ 0 & 0 & 1 & 1 & 1 & 1 & 0 & 0 \\ 0 & 0 & 1 & 1 & 0 & 0 & 1 & 1 \end{matrix}],

Use DMRS port 7 or8 or 7,8 o'clock, correspondence was combined use CRS port 0,1.

With specific embodiment, to downlink information, transmission is further elaborated below.

Embodiment 1

When base station sends downlink information, send same in the position, arrowband, center of radio frames N subframe 0 system bandwidthStep information and broadcast message, wherein arrowband, center is 6PRB, broadcast message comprises System Frame Number information and arrowbandAssignment information, sends synchronizing information in radio frames N subframe 5 positions, arrowband, system bandwidth center. Narrowband assignmentsIn information indicating system bandwidth, have 7 arrowbands to use, the center arrowband of laying respectively at is just being offset 1-3 arrowband and negativeBe offset 1-3 arrowband, be numbered arrowband 1-7 by low frequency to high frequency.

The control letter of base station each available publicly-owned information in transmission dispatching cell, arrowband in radio frames N subframe 1The publicly-owned information in Xi He community, wherein carries the publicly-owned search volume, community at the control channel place of the publicly-owned information in communityBe arranged in 2, center, arrowband PRB, with polymerization grade, L=2 takies control channel resource, adopts centralized biographyDefeated mode. The publicly-owned information in community is system information, and system information difference in each arrowband.

Arrowband 2 in radio frames N+M subframe x, base station sends control information and the use of dispatched users Proprietary InformationFamily Proprietary Information, now RRC connection has not yet been set up, and wherein user special information is random access procedureIn message four, the proprietary search sky of control channel place user of the control information of carrying dispatched users Proprietary InformationBetween now not yet definite, still use publicly-owned search volume, community, now use polymerization grade L=1 to take controlChannel resource processed. After connecting foundation, RRC re-uses the proprietary search volume of user.

By this optional embodiment, in system bandwidth, different arrowbands send different system informations, by broadcastTerminal that the narrowband assignments information of adding in information makes different service types in different narrow-band receptions separatelySystem information, the interference of the terminal that contributes to reduce different service types in identical arrowband, makes each arrowbandIndependent operating.

Embodiment 2

When base station sends downlink information, send same in the position, arrowband, center of radio frames N subframe 0 system bandwidthStep information and broadcast message, wherein arrowband, center is 72 subcarriers, in radio frames N subframe 5 system bandwidthsPosition, arrowband, center sends synchronizing information. In predefined system bandwidth, there are 5 arrowbands to use, lay respectively at centerArrowband is just being offset 1-2 arrowband and negative bias moves 1-2 arrowband, is numbered arrowband 1-5 by low frequency to high frequency.

Base station sends the control of the publicly-owned information in dispatching cell in radio frames N subframe 1 arrowband, center 3 and arrowband 2The publicly-owned information in information and community, wherein carries the publicly-owned search sky in community at the control channel place of the publicly-owned information in communityBetween be arranged in 2, center, arrowband PRB, with polymerization grade, L=2 takies control channel resource, adopts centralizedTransmission means. The publicly-owned information in community is system information, RAR message, Paging message, and in two arrowbandsThe publicly-owned information in community may be different. Now coverage enhancement MTC terminal and low cost MTC terminal are all usedThe publicly-owned information in identical narrow band transmission community.

Arrowband 1 in radio frames N+M subframe x, base station sends control information and the use of dispatched users Proprietary InformationFamily Proprietary Information, sends in arrowband 5 control information and the proprietary letter of user of dispatching coverage enhancement user special informationBreath, now RRC connection has not yet been set up, and wherein user special information is the message in random access procedureFour, this fashion of the proprietary search volume of control channel place user of the control information of carrying dispatched users Proprietary InformationDo not determine, still use publicly-owned search volume, community, now use polymerization grade L=1 to take control channel moneySource. After connecting foundation, RRC re-uses the proprietary search volume of user.

By the present embodiment, in system bandwidth, different arrowbands send the publicly-owned information in different communities, are conducive to holdCarry the publicly-owned message in content compare great community, make different terminals use the publicly-owned message in different narrow-band receptions community simultaneously,Avoid the problem of the publicly-owned message in different districts under the carrying not of same arrowband, and for coverage enhancement terminal and lowCost terminal is used different narrow band transmission for Proprietary Information, reduces coverage enhancement terminal to low cost terminalsDisturb.

Embodiment 3

When base station sends downlink information, send same in the position, arrowband, center of radio frames N subframe 0 system bandwidthStep information and broadcast message, wherein arrowband, center is 72 subcarriers, broadcast message comprises System Frame Number informationWith narrowband assignments information, send synchronizing information in radio frames N subframe 5 positions, arrowband, system bandwidth center. NarrowIn band assignment information indication mechanism bandwidth, have 5 arrowbands to use, it is individual narrow that the center arrowband of laying respectively at is just being offset 1-2Band and negative bias move 1-2 arrowband, are numbered arrowband 1-5 by low frequency to high frequency.

Base station is in control information and the community of the radio frames N subframe 1 publicly-owned information in transmission dispatching cell, arrowband, centerPublicly-owned information, the publicly-owned search volume, community of wherein carrying the control channel place of the publicly-owned information in community is positioned at arrowbandBoth sides of edges amounts in 2 PRB, and with polymerization grade, L=4 takies control channel resource, adopts distributed biographyDefeated mode. The publicly-owned information in community is system information.

Arrowband 5 in radio frames N+M subframe x, base station sends control information and the use of dispatched users Proprietary InformationFamily Proprietary Information, now position, arrowband is determined or is believed by the system of receiving by narrowband assignments information in broadcast messageIn breath, adding corresponding high-level signaling instruction determines. Now RRC connection has not yet been set up, and wherein user is specialHaving information is that the high level that RRC connects before setting up issues signaling information, the control of carrying dispatched users Proprietary InformationThe proprietary search volume of control channel place user of information is now not yet definite, uses that predefined user is proprietary to be searchedRope space, now the proprietary search volume of user takies 2, center, arrowband PRB, and with polymerization grade, L=1 takiesControl channel resource, adopts distributed transmission. After connecting foundation, RRC re-uses the use of high-level signaling configurationProprietary search volume, family.

In the time of the control channel of control information of the above-mentioned carrying dispatched users Proprietary Information of transmission, use based onThe predefined open loop MIMO precoding of DMRS pilot tone. Now in arrowband, send CRS pilot tone simultaneously. NowUse DMRS pilot tone port 7, be related to CW=D and mapping matrix according to port mapping

W =

[\begin{matrix} 1 & 1 & 0 & 0 & 1 & 1 & 0 & 0 \\ 1 & 1 & 0 & 0 & 0 & 0 & 1 & 1 \\ 0 & 0 & 1 & 1 & 1 & 1 & 0 & 0 \\ 0 & 0 & 1 & 1 & 0 & 0 & 1 & 1 \end{matrix}],

Combine and use CRS port 0,1. Terminal is combined use in the time of demodulation control informationCRS pilot tone, first adds predefined open loop MIMO precoding to CRS pilot value, afterwards again with DMRSChannel estimation results merge.

By this optional embodiment, in system bandwidth, the publicly-owned information in transmission community, identical arrowband, believes by broadcastThe instruction of the narrowband assignments information of adding in breath or the high-level signaling of service system makes different terminals different narrowBand receives user special information separately, does like this can avoid publicly-owned message and proprietary message to receive time narrow simultaneouslyProblem under band carrying not, simultaneously Hoisting System efficiency of bandwidth use. And use two kinds of pilot tones simultaneously, promoteTransmission performance.

Embodiment 4

When base station sends downlink information, send same in the position, arrowband, center of radio frames N subframe 0 system bandwidthStep information and broadcast message, wherein arrowband, center is 72 subcarriers, in radio frames N subframe 5 system bandwidthsPosition, arrowband, center sends synchronizing information. The broadcast channel of carrying broadcast message uses based on DMRS pilot toneTransmission means, and do not use precoding, in simultaneity factor, still sending CRS pilot tone, when receiving, terminal directly closesAnd the channel estimation results of two kinds of pilot tones.

Base station is in the control information of the radio frames N subframe 1 publicly-owned information in transmission dispatching cell, arrowband, center, whereinIt is all that the publicly-owned search volume, predefined community, control channel place of the publicly-owned information in carrying community is positioned at arrowbandIn 6 PRB, with polymerization grade, L=8 takies control channel resource, adopts distributed transmission mode. SchedulingThe control information of the publicly-owned information in community is indicated the publicly-owned information in corresponding community to be positioned on next son frame rate and is offset 3In individual arrowband, in all PRB resources, the publicly-owned information in community is system information.

Base station sends the control information of dispatched users Proprietary Information in arrowband, radio frames N+M subframe x center, thisTime RRC connect has not yet set up, wherein user special information be RRC connect foundation before high level under post a letterMake information, the proprietary search volume of control channel place user of the control information of carrying dispatched users Proprietary Information thisShi Shangwei determines, uses the predefined search volume identical with publicly-owned search volume, the now proprietary search of userAll 6 PRB in space hold arrowband, with polymerization grade, L=2 takies control channel resource, adopts and distributesFormula transmission. After connecting foundation, RRC still uses the proprietary search volume of predefined user. Dispatched users is proprietaryThe control information of information is indicated corresponding user special information to be arranged under next subframe arrowband and is offset 24In PRB resource.

In the time of the control channel of control information of the above-mentioned carrying dispatched users Proprietary Information of transmission, use based onThe predefined open loop MIMO precoding of DMRS pilot tone. Now in arrowband, send CRS pilot tone simultaneously. TerminalIn the time of demodulation control information, combine and use CRS pilot tone, first CRS pilot value is added to predefined open loopMIMO precoding, merges with the channel estimation results of DMRS afterwards again.

In the time of the downlink physical Traffic Channel of the above-mentioned carrying user special information of transmission, use and lead based on DMRSClosed-loop MIMO precoding frequently. Now in arrowband, send CRS pilot tone simultaneously. Terminal is in demodulation control informationShi Lianhe uses CRS pilot tone, first CRS pilot value is added to predefined closed-loop MIMO precoding,Precoding sequence number is control information notice by dispatched users Proprietary Information, afterwards again with the letter of DMRSRoad estimated result merges.

By this optional embodiment, in the control information of the publicly-owned information in transmission dispatching cell, arrowband, system bandwidth centerWith the control information of dispatched users Proprietary Information, in conjunction with across subframe scheduling, make data message take narrowband resourceNeed to use very flexibly and not narrowband assignments information. Use two kinds of pilot tones by combining, different channels can makeBy different transmission means, promote each channel performance.

Embodiment 5

When base station sends downlink information, send same in the position, arrowband, center of radio frames N subframe 0 system bandwidthStep information and broadcast message, wherein arrowband, center is 72 subcarriers, in radio frames N subframe 5 system bandwidthsPosition, arrowband, center sends synchronizing information, and broadcast message comprises System Frame Number information and narrowband assignments information. ArrowbandIn assignment information indication mechanism bandwidth, have 6 arrowbands to use, the center arrowband of laying respectively at is just being offset 1-2 arrowbandMove 1-3 arrowband with negative bias, be numbered arrowband 1-6 by low frequency to high frequency. The broadcast channel of carrying broadcast messageUse the transmission means based on DMRS pilot tone, and do not use precoding, in simultaneity factor, still send CRS and leadFrequently when, terminal receives, directly merge the channel estimation results of two kinds of pilot tones.

Base station sends the control information of the publicly-owned information in dispatching cell, Qi Zhongcheng in radio frames N subframe 1 arrowband 3The publicly-owned search volume, community of carrying the control channel place of the publicly-owned information in community is positioned at arrowband both sides of edges and amounts to 2In individual PRB, with polymerization grade, L=4 takies control channel resource, adopts distributed transmission mode. Dispatch littleThe control information of the publicly-owned information in district indicates the publicly-owned information in corresponding community to be positioned at the identical arrowband of book frame and thenIn 1 PRB resource of publicly-owned search volume, the publicly-owned information in community is system information.

Base station sends the control information of dispatched users Proprietary Information in radio frames N+M subframe x arrowband 3, nowRRC connection has not yet been set up, and wherein user special information is that RRC connects signaling under the high level before setting upInformation, the proprietary search volume of control channel place user of the control information of carrying dispatched users Proprietary Information nowNot yet definite, use the proprietary search volume of predefined user, now the proprietary search volume of user takies in arrowband2 PRB of the heart, with polymerization grade, L=1 takies control channel resource, adopts distributed transmission. Treat that RRC connectsAfter connecing foundation, re-use the proprietary search volume of user that high-level signaling configures. The control letter of dispatched users Proprietary InformationThe corresponding user special information of breath instruction is arranged in 24 of next subframe arrowbands PRB resource.

By this optional embodiment, the control information of the publicly-owned information in system bandwidth transmission dispatching cell, identical arrowband,The control information of the publicly-owned information in community and dispatched users Proprietary Information, determines control information by narrowband assignments informationArrowband, place, very flexible by this subframe/make data message take narrowband resource across subframe scheduling, promoteSystem effectiveness. Use two kinds of pilot tones by combining, different channels can use different transmission means, promotes eachIndividual channel performance.

Embodiment 6

When base station sends downlink information, send same in the position, arrowband, center of radio frames N subframe 0 system bandwidthStep information is identical with narrow band bandwidth with broadcast message and system bandwidth. In radio frames N subframe 5 system bandwidthsNarrow-minded band position sends synchronizing information.

Base station is in the control information of the radio frames N subframe 1 publicly-owned information in transmission dispatching cell, arrowband, center, whereinThe publicly-owned search volume, predefined community, control channel place of the publicly-owned information in carrying community is positioned at arrowband inward flangeIn 2 PRB, with polymerization grade, L=2 takies control channel resource, adopts distributed transmission mode. SchedulingThe control information of the publicly-owned information in community indicates the publicly-owned information in corresponding community to be positioned at 2 PRB moneys of book frame centerIn source, the publicly-owned information in community is system information.

Base station sends the control information of dispatched users Proprietary Information in arrowband, radio frames N+M subframe x center, thisTime RRC connect has not yet set up, wherein user special information be RRC connect foundation before high level under post a letterMake information, the proprietary search volume of control channel place user of the control information of carrying dispatched users Proprietary Information thisShi Shangwei determines, uses the predefined search volume identical with publicly-owned search volume, the now proprietary search of user2 PRB of space hold arrowband inward flange, with polymerization grade, L=1 takies control channel resource, adopts and distributesFormula transmission. After connecting foundation, RRC still uses the proprietary search volume of predefined user. Dispatched users is proprietaryThe control information of information indicates corresponding user special information to be arranged in 2 PRB resources of next son frame center.

By the present embodiment, in the time that system bandwidth equals narrow band bandwidth, all message all sends by arrowband, center,In conjunction with this subframe scheduling with across subframe scheduling, make data message take narrowband resource very flexible. By associatingUse two kinds of pilot tones, promote channel performance.

Obviously, it is apparent to those skilled in the art that above-mentioned of the present invention each module or each step can useGeneral calculation element is realized, and they can concentrate on single calculation element, or is distributed in multiple metersOn the network that calculation device forms, alternatively, they can be realized with the executable program code of calculation element,Thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, canTo carry out shown or described step with the order being different from herein, or they are made into respectively to each collectionBecome circuit module, or the multiple modules in them or step are made into single integrated circuit module 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 this areaTechnical staff, the present invention can have various modifications and variations. It is within the spirit and principles in the present invention all,Any amendment of doing, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.

Claims

1. a downlink information sending method, is characterized in that, comprising:

The channel of the different downlink informations of carrying is divided into groups;

Channel allocation after grouping is sent to narrowband resource.

2. method according to claim 1, is characterized in that, the channel allocation after grouping is arrived to described arrowbandIn resource, send comprise following one of at least:

Channel allocation in same grouping is sent to identical narrowband resource, by the letter in different groupingRoad is assigned in the different time domain resource in identical narrowband resource and sends.

3. method according to claim 2, is characterized in that, described time-domain resource comprises following unit extremelyOne of few: subframe, field, radio frames.

4. method according to claim 2, is characterized in that, described narrowband resource is to divide in system broadResource in the N cutting out an arrowband, wherein, N is more than or equal to 1.

5. method according to claim 4, is characterized in that, each described narrowband resource is: 5 physics moneysSource piece PRB, 6PRB, 15PRB or 25PRB.

6. method according to claim 1, is characterized in that, described downlink information comprise following one of at least:Synchronizing information, broadcast message, the publicly-owned information in community, downlink user Proprietary Information, the publicly-owned letter in dispatching cellControl information, the control information of dispatching downlink user special information, the dispatching uplink user special information of breathControl information.

7. according to the method described in any one in claim 1 to 6, it is characterized in that, the channel after grouping is dividedBe fitted on described narrowband resource send comprise following one of at least:

The channel of carrying synchronizing information and/or broadcast message sends on the arrowband at system bandwidth center;

Use by signal deployment or the definite narrowband resource of predefined mode, send following one of at least:The publicly-owned information in carrying community, downlink user Proprietary Information, the control information of the publicly-owned information in dispatching cell, tuneThe channel of the control information of degree downlink user Proprietary Information, the control information of dispatching uplink user special informationChannel.

8. method according to claim 7, is characterized in that,

Described signal deployment comprise following one of at least: broadcast signaling, system message signaling, physical layer letterOrder;

Described predefined mode comprises and is identified for the publicly-owned information in community, downlink user Proprietary Information, schedulingThe control information of the publicly-owned information in community, the control information of dispatching downlink user special information and dispatching uplink are usedThe available arrowband of the transmission of one or more information in the control information of family Proprietary Information.

9. method according to claim 7, is characterized in that,

In described same grouping, comprise carrying community publicly-owned message, downlink user Proprietary Information, dispatch littleIn the control information of the publicly-owned information in district, the control information of dispatching downlink user special information and/or schedulingThe channel of the control information of row user special information, the narrowband assignments information indication comprising in broadcast messageThat show or according to sending on predefined different narrowband resources, wherein, what on different narrowband resources, send is littleThe publicly-owned message in district is different.

10. method according to claim 9, is characterized in that, the difference of the publicly-owned message in described community comprises:The publicly-owned message in community that type identical content is different, or the different publicly-owned message in community of type, wherein,Described type comprises: SIB, RAR or paging Paging.

11. methods according to claim 9, is characterized in that, on different described narrowband resources, can sendIndependently carry the channel of synchronizing information and/or broadcast message.

12. methods according to claim 7, is characterized in that,

In described same grouping, comprise the control information of the publicly-owned message in carrying community, the publicly-owned information in dispatching cellChannel, or in same grouping, comprise bearing downlink user special information, dispatched users Proprietary InformationThe channel of control information, the narrowband assignments information comprising in broadcast message instruction or predefined different narrowIn band resource, send.

13. methods according to claim 7, is characterized in that,

The control information and the dispatched users that in described same grouping, comprise the publicly-owned information in carrying dispatching cell are specialThere is the channel of the control information of information, send in arrowband, center; Or, when broadcast message comprises fingerShow in the situation of this grouping narrowband assignments information, on the narrowband resource of described narrowband assignments information instruction, send outSend or send in predefined arrowband;

In same grouping, comprise the channel of the carrying publicly-owned information in community and/or downlink user Proprietary Information,On narrowband resource by control channel scheduling instruction, send.

14. methods according to claim 7, is characterized in that,

In described same grouping, comprise the control information of the publicly-owned message in carrying community, the publicly-owned information in dispatching cellWith the channel of the control information of dispatched users Proprietary Information, or in same grouping, comprise carrying community is publicly-owned and disappearControl information and the dispatched users Proprietary Information of breath, the proprietary message of downlink user, the publicly-owned information in dispatching cellThe channel of control information, on arrowband, center, send; Or, when broadcast message comprises this grouping arrowbandIn the situation of assignment information, on the narrowband resource of described narrowband assignments information instruction, send or predefiningArrowband send;

In same grouping, comprise the channel of the carrying publicly-owned information in community and user special information, or same groupingInside only comprise the channel that carries user special information, or in same group, only comprise the publicly-owned information in carrying communityChannel, on the narrowband resource of control channel scheduling instruction, send.

15. methods according to claim 7, is characterized in that, carry the channel of all downlink informations sameOn narrowband resource, send.

Any one in 16. according to Claim 8 to 15, is characterized in that, the information in described grouping is at system bandWhen wide acentric arrowband sends, the quantity of the narrowband resource using is for being more than or equal to 1.

Method in 17. according to Claim 8 to 15 described in any one, is characterized in that,

The search volume, channel place of the control information of the described downlink user Proprietary Information of carrying scheduling existsRRC connects before setting up and determines by predefined or fixing or signaling mode.

18. methods according to claim 17, is characterized in that, described signaling bear is at system information block SIBOr in accidental access response RAR, wherein, signaling bit territory only indicate except predefined parameter inHold.

19. methods according to claim 17, is characterized in that,

The search volume of the channel of the control information of described carrying dispatching downlink user special information is not forBe identical with user, wherein, identical described search volume comprises: user's dedicated search space and public affairsHave search volume to overlap completely, or the proprietary search volume of user that RRC connects before setting up is identical.

20. methods according to claim 17, is characterized in that,

After described search volume is determined, be implicit this use of distributing of each user equipment (UE) by predefined parameterThe proprietary search volume of user of family equipment.

21. methods according to claim 20, is characterized in that, the proprietary search volume of described user determineComprise: by first selecting narrowband resource to select again the mode of PRBs in this narrowband resource to determine, or,Directly in full bandwidth, select the mode of PRBs to determine.

Method in 22. according to Claim 8 to 15 described in any one, is characterized in that,

The search volume, channel place of the control information of described carrying dispatching downlink user special information is onlyThe proprietary search volume of user and RRC connect configure by same way before and after setting up definite, wherein, instituteState same way for predefined or fixed form.

Method in 23. according to Claim 8 to 15 described in any one, is characterized in that,

Dispatch the control information of described user special information or dispatch the control letter of the publicly-owned information in described communityBreath, in the time of the described user special information of instruction or the shared frequency domain resource of the publicly-owned information in described community, usesPart I instruction arrowband occupied information, another bit field or a ratio of bit field or bit fieldPRB occupied information in the Part II instruction arrowband in special territory.

Method in 24. according to Claim 8 to 15 described in any one, is characterized in that, dispatches described up useThe control information of family Proprietary Information is in the frequency domain resource of instruction arrowband, described up user special information placeTime, at least comprise a complete detection reference signal SRS.

Method in 25. according to Claim 8 to 15 described in any one, is characterized in that, described control information is pressedDetermine RA territory according to the PRB quantity that maximum system bandwidth is corresponding, or described control information is according to working asPRB quantity corresponding to front system bandwidth is determined RA territory, or described control information is established according to userStandby PRB quantity corresponding to maximum bandwidth receiving is determined RA territory.

Method in 26. according to Claim 8 to 15 described in any one, is characterized in that,

Dispatch the control information of described user special information or dispatch the control letter of the publicly-owned information in described communityBreath is in the described downlink user Proprietary Information of instruction or the shared time domain subframe money of the publicly-owned information in described community, use the offset numbers of a bit field instruction with respect to described control information place subframe when in the source.

Method in 27. according to Claim 8 to 15 described in any one, is characterized in that,

The dispense needles of described arrowband configures respectively low cost MTC terminal and coverage enhancement MTC terminal,All channels in the each grouping of wherein said low cost MTC terminal all with described coverage enhancement MTC terminalUse different arrowbands, or, the local channel in the each grouping of described low cost MTC terminal with described inCoverage enhancement MTC terminal is used different arrowbands.

Method in 28. according to Claim 8 to 15 described in any one, is characterized in that,

Carry described in described broadcast message, the publicly-owned message in described community, described user special information, schedulingThe control information of the publicly-owned information in community, the channel of dispatching the control information of described user special information usePilot tone be demodulated reference signal DMRS, combine use adopt when the proprietary pilot tone CRS in community with belowOne of formula:

DMRS pilot tone is not added precoding, uses the information in the channel of described DMRS pilot tone not addPrecoding;

DMRS pilot tone is used predefined precoding, uses the information in the channel of described DMRS pilot toneUse predefined described precoding;

DMRS pilot tone is used precoding, uses the described user in the data channel of described DMRS pilot toneProprietary Information uses described precoding, and wherein, precoding information is by the described user special information of schedulingControl information is indicated.

29. methods according to claim 28, is characterized in that, described CRS port and DMRS port itBetween there are mapping relations, wherein, described mapping relations at least obtain according to port mapping matrix computations.

30. methods according to claim 28, is characterized in that, the pilot tone of described use is during for DMRS,Combine while using CRS and adopt time division multiplexing mode, part subframe is only used DMRS pilot tone, all the other subframesOnly use CRS pilot tone or use DMRS and CRS pilot tone simultaneously.

31. 1 kinds of downlink information method of reseptances, is characterized in that, comprising:

In the time receiving downlink information, on narrowband resource, grouping receives the channel of the different downlink informations of carrying.

32. methods according to claim 31, is characterized in that, on described narrowband resource, grouping receives and holdsCarry the described channel of different downlink informations comprise following one of at least:

On identical narrowband resource, receive the channel in same grouping, different in identical narrowband resourceTime-domain resource on receive the channel in different grouping.

33. methods according to claim 32, is characterized in that, described time-domain resource at least comprises placing an orderPosition one of at least: subframe, field, radio frames.

34. methods according to claim 32, is characterized in that, described narrowband resource is in system bandwidthResource in the N a being partitioned into arrowband, wherein, N is more than or equal to 1.

35. methods according to claim 32, is characterized in that, each described narrowband resource is 5 physics moneysSource piece PRB, 6PRB, 15PRB or 25PRB.

36. methods according to claim 32, is characterized in that, described downlink information comprise following at least itOne: synchronizing information, broadcast message, the publicly-owned information in community, downlink user Proprietary Information, dispatching cell public affairsThere are control information, the control information of dispatching downlink user special information, the dispatching uplink user of information proprietaryThe control information of information.

37. according to the method described in any one in claim 32 to 36, it is characterized in that, on narrowband resource, dividesThe channel that group receives the different downlink informations of carrying comprise following one of at least:

At least receive on some cycles or predefined subframe in the arrowband at system bandwidth center carrying withThe down channel of step information and/or broadcast message;

The control information of carrying community publicly-owned information, downlink user Proprietary Information, the publicly-owned information in dispatching cell,The control information of the control information of dispatching downlink user special information and dispatching uplink user special informationThe narrow bandpass one of at least using in channel crosses signal deployment or predefined mode is determined.

38. according to the method described in claim 37, it is characterized in that,

Described predefined mode comprises and is identified for the publicly-owned information in community, downlink user Proprietary Information, schedulingThe control information of the publicly-owned information in community, the control information of dispatching downlink user special information and dispatching uplink are usedThe available arrowband of the reception of one or more information in the control information of family Proprietary Information.

39. according to the method described in claim 37, it is characterized in that,

In described same group, comprise the publicly-owned message in carrying community, downlink user Proprietary Information, dispatching cell public affairsThere are the control information of information, control information and/or the dispatching uplink user of dispatching downlink user special informationThe channel of the control information of Proprietary Information, indicated according to the narrowband assignments information comprising in broadcast messageOr receive on predefined different narrowband resources, wherein, the community receiving on different narrowband resources is publicly-ownedMessage is different.

40. according to the method described in claim 39, it is characterized in that, the difference of the publicly-owned message in described community comprises:The publicly-owned message in community that type identical content is different, or the different publicly-owned message in community of type, wherein,Described type comprises: SIB, RAR or paging Paging.

41. according to the method described in claim 37, it is characterized in that, on different described narrowband resources, can connectReceive the channel that independently carries synchronizing information and/or broadcast message.

42. according to the method described in claim 37, it is characterized in that,

In described same group, comprise the control information of carrying community publicly-owned message, the publicly-owned information in dispatching cellChannel, or in same group, comprise the control of bearing downlink user special information, dispatched users Proprietary InformationThe channel of information, and according to the narrowband assignments information comprising in broadcast message indicated or predefined differenceOn narrowband resource, receive.

43. according to the method described in claim 37, it is characterized in that,

The control information and the dispatched users that in described same group, comprise the publicly-owned information in carrying dispatching cell are proprietaryThe channel of the control information of information, in center narrow-band reception, or, when broadcast message comprises this group of instructionWhen narrowband assignments information, receive according to the instruction of described narrowband assignments information or in predefined arrowbandReceive;

In same group, comprise the channel of the carrying publicly-owned information in community and/or downlink user Proprietary Information, in controlOn the narrowband resource of channel dispatch instruction processed, accept.

44. according to the method described in claim 37, it is characterized in that,

In described same group, comprise carrying community publicly-owned message, the publicly-owned information in dispatching cell control information andThe channel of the control information of dispatched users Proprietary Information, or in same group, comprise carrying community publicly-owned message,The control information of the proprietary message of downlink user, the publicly-owned information in dispatching cell and the control of dispatched users Proprietary InformationThe channel of information processed, in center narrow-band reception; Or, when broadcast message comprises this group narrowband assignments informationIn time, receives or in predefined narrow-band reception according to the instruction of described narrowband assignments information;

In same group, comprise the channel of the carrying publicly-owned information in community and downlink user Proprietary Information, or sameIn group, only comprise the channel of bearing downlink user special information, or in same group, only comprise carrying community public affairsThere is the channel of information, on the narrowband resource by control channel scheduling instruction, receive.

45. according to the method described in claim 37, it is characterized in that, the channel that carries all downlink informations all existsIn same arrowband, receive.

46. according to the method described in any one in claim 38 to 45, it is characterized in that the letter in described groupingWhen breath sends in the acentric arrowband of system bandwidth, the quantity of the narrowband resource using is for being more than or equal to 1Individual.

47. according to the mode described in any one in claim 38 to 45, it is characterized in that,

The search volume, channel place of the control information of carrying dispatching downlink user special information connects at RRCConnect before setting up and determine by predefined or fixing or signaling mode.

48. according to the method described in claim 47, it is characterized in that, described signaling bear in SIB or RAR,Wherein, the content except predefined parameter is only indicated in signaling bit territory.

49. according to the method described in claim 47, it is characterized in that,

50. according to the method described in claim 47, it is characterized in that,

After described search volume is determined, imply and determine that the user of each subscriber equipment is proprietary by predefined parameterSearch volume.

51. according to the method described in claim 50, it is characterized in that, the proprietary search volume of described user determineComprise: by first selecting narrowband resource to select again the mode of PRBs in this narrowband resource to determine, or,Directly in full bandwidth, select the mode of PRBs to determine.

52. according to the method described in any one in claim 38 to 45, it is characterized in that,

53. according to the method described in any one in claim 38 to 45, it is characterized in that,

The control letter of the publicly-owned information of the control information of described dispatching downlink user special information or dispatching cellBreath, in the time of the shared frequency domain resource of the publicly-owned information of indicating downlink user special information or community, uses whereinPart I instruction arrowband occupied information, another bit field or a ratio of bit field or bit fieldConcrete PRB occupied information in the Part II instruction arrowband in special territory.

54. according to the method described in any one in claim 38 to 45, it is characterized in that, dispatches described up useThe control information of family Proprietary Information is in the frequency domain resource of instruction arrowband, described up user special information placeTime, at least comprise a complete detection reference signal SRS.

55. according to the method described in any one in claim 38 to 45, it is characterized in that, wherein, described schedulingThe control information of user special information is determined RA territory according to PRB quantity corresponding to maximum system bandwidth,Or described control information is determined RA territory according to PRB quantity corresponding to current system bandwidth, or,PRB quantity corresponding to maximum bandwidth that described control information receives according to subscriber equipment is determined RA territory.

56. according to the method described in any one in claim 38 to 45, it is characterized in that,

The control information of the publicly-owned information of the control information of described dispatched users Proprietary Information or dispatching cell existsWhen the shared time domain sub-frame resources of the publicly-owned information in indicating user Proprietary Information or community, use a bitTerritory, instruction is with respect to the offset numbers of this control information place subframe.

57. according to the method described in any one in claim 38 to 45, it is characterized in that,

58. according to the method described in any one in claim 38 to 45, it is characterized in that,

Described carrying broadcast message, the publicly-owned message in community, user special information, the publicly-owned information in dispatching cellThe pilot tone that uses of the channel of control information of control information, dispatched users Proprietary Information be DMRS,One of use when CRS in the following ways combining:

DMRS pilot tone is not added precoding, uses the information in the channel of this pilot tone not add in advance simultaneously yetCoding;

DMRS pilot tone is used predefined precoding, uses the information in the channel of this pilot tone also to make simultaneouslyUse predefined precoding;

DMRS pilot tone is used precoding, uses the user special information in the data channel of this pilot tone simultaneouslyAlso use precoding, precoding information is indicated by the control information of dispatched users Proprietary Information simultaneously.

59. according to the method described in claim 58, it is characterized in that, described CRS port and DMRS port itBetween there are mapping relations, wherein, described mapping relations at least obtain according to port mapping matrix computations.

60. according to the method described in claim 58, it is characterized in that, the pilot tone of described use is during for DMRS,Combine while using CRS and adopt time division multiplexing mode, part subframe is only used DMRS pilot tone, all the other subframesOnly use CRS pilot tone or use DMRS and CRS pilot tone simultaneously.

61. 1 kinds of downlink information dispensing devices, is characterized in that, comprising:

Grouping module, for dividing into groups the channel of the different downlink informations of carrying;

Transport module, for sending the channel allocation after grouping to narrowband resource.

62. according to the device described in claim 61, it is characterized in that, described transport module comprise following at least itOne:

The first transmission unit, for sending the channel allocation in same grouping to identical narrowband resource;

The second transmission unit, for by the channel allocation in different grouping to identical narrowband resource notWith sending in time-domain resource.

63. according to the device described in claim 61 or 62, it is characterized in that, described transport module comprises:

The 3rd transmission unit, for the channel that carries synchronizing information and/or broadcast message in system bandwidthOn the arrowband of the heart, send;

Determine transmission unit, for using by signal deployment or the definite narrowband resource of predefined modeSend following one of at least: the publicly-owned information in carrying community, downlink user Proprietary Information, dispatching cell are publicly-ownedThe channel of the control information of information, the control information of dispatching downlink user special information, dispatching uplink userThe channel of the control information of Proprietary Information.

64. 1 kinds of downlink information receiving systems, is characterized in that, comprising:

Receiver module, in the time receiving downlink information, on narrowband resource, grouping receives under carrying differenceThe channel of row information.