CN106209331A

CN106209331A - Method for message transmission, demodulation method, transmitting device and demodulating equipment

Info

Publication number: CN106209331A
Application number: CN201510233273.5A
Authority: CN
Inventors: 石靖; 夏树强; 戴博; 方惠英; 张雯; 刘锟; 陈宪明
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-05-08
Filing date: 2015-05-08
Publication date: 2016-12-07

Abstract

The invention provides a kind of method for message transmission, demodulation method, transmitting device and demodulating equipment, wherein, this message demodulation method includes: receive the publicly-owned message in community that base station sends；It is demodulated based on demodulated reference signal DMRS message publicly-owned to this community.By the present invention, solve and cannot ensure the problem that the publicly-owned message in community is transmitted based on DMRS present in correlation technique, and then reached to ensure the effect that the publicly-owned message in community is transmitted based on DMRS.

Description

Method for message transmission, demodulation method, transmitting device and demodulating equipment

Technical field

The present invention relates to the communications field, in particular to a kind of method for message transmission, demodulation method, transmitting device and Demodulating equipment.

Background technology

Long Term Evolution (Long-Term Evolution, referred to as LTE)/advanced long-term evolution system in correlation technique (Long-Term Evolution Advance, referred to as LTE-Advance or LTE-A) is dynamic based on each subframe Scheduling is transmitted, and the most each subframe all can transmit different control channels, and its frame structure is as depicted in figs. 1 and 2.

Fig. 1 is FDD (Frequency Division Duplexing, the referred to as FDD) mould according to correlation technique The schematic diagram of the frame structure of formula.As it is shown in figure 1, the radio frames of a 10ms is by 20 a length of 0.5ms, numbering Time slot (slot) composition of 0～19, it is 0 that time slot 2i and 2i+1 forms subframe (subframe) i, i of a length of 1ms Or natural number.

Fig. 2 is time division duplex (Time Division Duplexing, the referred to as TDD) pattern according to correlation technique The schematic diagram of frame structure, as in figure 2 it is shown, the radio frames of a 10ms is by the field (half frame) of two a length of 5ms Composition, a field includes the subframe of 5 a length of 1ms, and subframe i is defined as the time slot 2i of 2 a length of 0.5ms And 2i+1.

(Physical Downlink Control Channel is called for short Physical Downlink Control Channel defined in LTE/LTE-A For PDCCH) and strengthen Physical Downlink Control Channel (enhanced Physical Downlink Control Channel, letter It is referred to as ePDCCH).Down control channel for bearing downlink control information (Downlink Control Information, Referred to as DCI), including: uplink and downlink schedule information, and uplink power control information.Wherein, physical control lattice The information that formula instruction channel (Physical Control Format Indicator Channel, referred to as PCFICH) carries is used In a subframe, OFDM (the Orthogonal Frequency Division of PDCCH is transmitted in instruction Multiplexing, referred to as OFDM) number of symbol.Physical mixed ARQ instruction channel (Physical Hybrid-ARQ Indicator Channel, referred to as PHICH) for carrying the acknowledgement/non-acknowledgement of uplink transmission data (ACK/NACK) feedback information, wherein, ARQ is HARQ (Automatic Repeat-reQuest) Abbreviation.

Generally Mobile terminating call (Mobile Teminated Call, referred to as MTC) terminal can be by each subframe solution PDCCH/ePDCCH channel is adjusted to obtain DCI, in order to realize Physical Downlink Shared Channel (Physical Downlink Share Channel, referred to as PDSCH) solution be in harmonious proportion Physical Uplink Shared Channel (Physical Uplink Share Channel, referred to as PUSCH) scheduling instruction.Wherein on PDSCH, the message of carrying substantially can be divided into two classes, The one publicly-owned message in Lei Wei community, typically such as system information block (System Information Block, referred to as SIB), Another kind of for the proprietary message of user.The publicly-owned message in its small area be normally based on control channel dispatch mode be transmitted and The pilot tone used is cell reference signals (Cell-specific Reference Signal is called for short CRS).The proprietary message of user The pilot tone that can use is CRS or demodulated reference signal (Demodulation Reference Signal is called for short DMRS). Wherein CRS can be used for the channel estimation of terminal and obtains channel condition information, respective antenna port port 0-3.DMRS It is generally used for being that a specific terminal carries out channel estimation, in the Resource Block of the PDSCH transmission use of specific user Transmission, corresponding port7-14.

Physical Broadcast Channel (Physical Broadcast Channel, referred to as PBCH) defined in LTE/LTE-A, For carrying host system message block (Master Information Block, referred to as MIB), the information bag contained in MIB Include: downlink system bandwidth, System Frame Number, PHICH configuration information.Owing to the System Frame Number in current LTE system is believed Breath is included in MIB transmission, and the dispatching cycle sending MIB is 40ms, and in current 40ms, primary system information is respectively Send 4 times on broadcast channel in the subframe 0 of radio frames, respectively system information encoding block 1, system information encoding block 2, system information encoding block 3 and system information encoding block 4, each system information encoding block carries complete MIB letter Breath, can independently decode.MIB message in every 40ms is to maintain constant, system-frame in next MIB message Sequence number can change.The pilot tone that MIB message uses is CRS.Referring to Fig. 3, Fig. 3 is according to correlation technique PBCH sends schematic diagram within the 40ms cycle.

According to existing market application demand, there is a Terminal Type due to residing place, such as room located underground or corner etc., or its His reason causes covering performance drastically to decline, and needs significant increase covering performance.For coverage enhancement scene, as compared LTE/LTE-A system covering performance promotes 15dB or 20dB, needs employing to repeat transmission at this point for each physical channel Method.The PDSCH of the publicly-owned message of PBCH or carrying community of carrying MIB needs also exist for repeating transmission.Due to The repeat transmission system using scheduling mode is inefficient, and industry proposes without controlling the publicly-owned message in transmission community, especially SIB message.When transmission is repeated with the nothing control transmission publicly-owned message in community for PBCH, can be potentially encountered and do not support CRS The multicast of pilot tone/multicast single-frequency network network (Multimedia Broadcast multicast service Single Frequency Network, referred to as MBSFN) subframe.Repeat to transmit PBCH and carrying community public affairs at this point for based on DMRS The PDSCH having message needs to consider solution.And along with the evolution of standard, it is likely to not support CRS in the future Pilot tone, regardless of whether there is the demand of coverage enhancement, all of publicly-owned message is required for transmitting based on DMRS, but In correlation technique, it is impossible to ensure that the publicly-owned message in community is transmitted based on DMRS.

The problem that the publicly-owned message in community is transmitted cannot be ensured based on DMRS, at present present in correlation technique There is no effective solution.

Summary of the invention

The invention provides a kind of method for message transmission, demodulation method, transmitting device and demodulating equipment, at least to solve phase The problem that the publicly-owned message in community is transmitted cannot be ensured based on DMRS present in the technology of pass.

According to an aspect of the invention, it is provided a kind of method for message transmission, including: based on demodulated reference signal DMRS The publicly-owned message in transmission community.

Further, include based on the publicly-owned message in demodulated reference signal DMRS transmission community: based on following transmission means At least one transmit described community publicly-owned message: single port based on demodulated reference signal DMRS transmission, based on demodulation The two-port space diversity of reference signal DMRS, two-port based on demodulated reference signal DMRS send diversity, base Four ports in demodulated reference signal DMRS send diversity.

Further, the publicly-owned message in described community includes at least one of: host system message block MIB, system information block SIB, accidental access response RAR, paging Paging.

Further, the sequence number of port determines at least one in the following way: the serial number fixed value of described port；Base The sequence number of described port is determined in predefined value；The sequence number of described port is determined according to cell ID ID；According to main synchronization Sequence number and/or auxiliary synchronization sequence number determine the sequence number of described port.

Further, transmit the publicly-owned message in described community based on demodulated reference signal DMRS to include: based on demodulation reference Signal DMRS utilizes multiple Physical Resource Block PRB to transmitting the publicly-owned message in described community, wherein, described PRB centering Including multiple Resource Unit RE；When described transmission means is single port based on demodulated reference signal DMRS transmission, The precoding of each PRB of the plurality of PRB centering the single port to being used is the most identical, part is identical or each not phase With, when each PRB of the plurality of PRB centering single port to being used pre-encoding unit split-phase with or different Time, the precoding of each the PRB described single port to being used is by determining at random.

Further, transmit the publicly-owned message in described community based on demodulated reference signal DMRS to include: based on demodulation reference Signal DMRS utilizes multiple Physical Resource Block PRB to transmitting the publicly-owned message in described community, wherein, described PRB centering Including multiple Resource Unit RE；When two-port space diversity based on demodulated reference signal DMRS, based on demodulation reference The two-port of signal DMRS sends diversity, the transmission side of four ports transmission diversity based on demodulated reference signal DMRS In formula at least one the transmission publicly-owned message in described community time, the sequence number of first port is at least one in the following way really Fixed: the serial number fixed value of described first port, to determine the sequence number of described first port, basis based on predefined value Cell ID ID determines the sequence number of described first port, determines described according to main synchronization sequence number and/or auxiliary synchronization sequence number The sequence number of one port；The sequence number of other ports according to before other ports described it has been determined that the sequence number of port carry out Determine.

Further, transmit described little when the transmission means of two-port space diversity based on demodulated reference signal DMRS During the publicly-owned message in district, determine at least one in the following way the sequence number of described two-port: in the plurality of PRB centering In all available RE, a same RE only corresponding port, RE adjacent in RE adjacent on frequency domain, time domain Or the RE correspondence different port that time-frequency domain is adjacent；The RE of same PRB centering uses same port and adjacent PRB The RE correspondence different port of centering；After same PRB centering carries out first frequency domain to available RE, time domain is sequentially numbered, Wherein, the minimum RE of subcarrier in frequency domain numbering minimum and time-domain OFDM symbol numbering as initial RE and numbered 0, One port of the correspondence of numbered odd number, another port of the correspondence of numbered even number.

Further, diversity is sent, based on demodulated reference signal when two-port based on demodulated reference signal DMRS DMRS four ports send diversity transmission means at least one transmission the publicly-owned message in described community time, by as follows Mode determines described two-port or described four ports: use the different demodulated reference signal DMRS pilot tones taking identical RE Port is as described two-port or described four ports.

Further, utilize multiple Physical Resource Block PRB public to transmitting described community based on demodulated reference signal DMRS There is message to comprise determining that in the resource area that the publicly-owned message in described community uses and possess the energy transmitting the publicly-owned message in described community The RE of power；The described RE determined is utilized to transmit the publicly-owned message in described community.

The publicly-owned message in described community is transmitted further, it is determined that the resource area of the publicly-owned message in described community use possesses The RE of ability includes at least one of: using RE all in addition to the RE that demodulated reference signal DMRS takies as The described RE determined；Using all RE in addition to the RE that demodulated reference signal DMRS and port 0 to X takies as The described RE determined, wherein, X value is 1 or 3；By the RE taken except demodulated reference signal DMRS and volume The outer all RE of 4 the most vacant RE are as the described RE determined；Using all RE as the described RE determined；Will In addition to the RE that port 0 to X takies, all RE are as the described RE determined, wherein, X value is 1 or 3.

Further, described 4 the most vacant RE include: take RE place OFDM symbol with DMRS pilot tone Number identical and take, from described DMRS pilot tone, the RE that RE place subcarrier number is different.

Further, when the Resource Unit punching that the described RE determined and channel state information reference signals CSI-RS use Time prominent, at least one the in the following way transmission publicly-owned message in described community or described CSI-RS: little described in prioritised transmission The publicly-owned message in district；CSI-RS described in prioritised transmission；Reconfigure the Resource Unit that described CSI-RS uses, utilize again Resource Unit after configuration transmits described CSI-RS.

Further, reconfigure the Resource Unit that described CSI-RS uses to include: by a PRB centering one or two Individual time slot subcarrier number is 0, orthogonal frequency division multiplex OFDM symbol number be 5,6 Resource Unit be configured to described The Resource Unit that CSI-RS uses；And/or, it is 11 by one or two time slot subcarrier number of a PRB centering, just The Resource Unit handing over frequency division multiplex OFDM symbol number to be 5,6 is configured to the Resource Unit that described CSI-RS uses.

It is further, different for transmitting the resource area residing in different subframes for RE of the publicly-owned message in described community, Described resource area includes at least one region below: except traditional Physical Downlink Control Channel legacy in subframe 0,5 Part OFDM symbol outside PDCCH region；Except traditional Physical Downlink Control Channel legacy in other subframes Part or all of OFDM symbol outside PDCCH region.

Further, include based on the publicly-owned message in demodulated reference signal DMRS transmission community: disappear to described community is publicly-owned The CRC CRC scrambling mask of breath, wherein, described mask is used for notifying transmission means described in terminal；Will The publicly-owned message in community after scrambling is transferred to described terminal.

Further, the kind of the described mask of the CRC scrambling of message publicly-owned to described community is less than or equal to 4.

Further, when the publicly-owned message in described community is described MIB, the CRC scrambling of message publicly-owned to described community The sequence of described mask determine according to subframe 0 small area reference signal CRS port number.

Further, in described transmission means, the value of the scrambling code identification SCID used when transmitting based on DMRS is Fixed value or for the implicit value determined, wherein, the described implicit value determined is according to different messages type or cell ID ID Determine.

Further, when the publicly-owned message in described community is SIB, RAR or Paging, based on demodulated reference signal After DMRS transmits described community publicly-owned message, also include: by the physical layer signaling notice following parameter of terminal at least it One: transmission means, port numbers, SCID.

Further, include based on the publicly-owned message in demodulated reference signal DMRS transmission community: based on demodulated reference signal DMRS repeats to transmit the publicly-owned message in described community, wherein, when the number of times repeating transmission is more than 1, performs described repetition The subframe of transmission carries out at least one in the following way repeating transmission: all execution repeat the subframe of transmission all use based on The transmission means of DMRS；The subframe that part execution repeats to transmit uses transmission means based on DMRS, and remaining is held simultaneously Row repeats the subframe of transmission and uses transmission means based on cell reference signals CRS；Part performs to repeat the subframe of transmission Transmission means based on DMRS remaining subframe performing to repeat transmission simultaneously is used to use based on cell reference signals CRS Transmission means with DMRS；Part performs to repeat the subframe of transmission and uses transmission side based on cell reference signals CRS Formula remaining subframe performing to repeat transmission simultaneously does not use pilot tone.

Further, when the subframe performing to repeat to transmit uses the transmission means more than a kind of pilot type, based on DMRS In the CRC of the publicly-owned message in subframe small area of transmission, the mask of scrambling is publicly-owned with the subframe small area transmitted based on CRS disappears In the CRC of breath, the mask of scrambling is identical.

Further, when the publicly-owned message in described community is MIB, to the sequence of the mask that described MIB scrambles according to holding In subframe 0 in the described subframe place radio frames repeating transmission of row, CRS port number determines.

According to a further aspect in the invention, it is provided that a kind of message demodulation method, including: receive the community that base station sends public There is message；It is demodulated based on demodulated reference signal DMRS message publicly-owned to described community.

Further, the publicly-owned message in community receiving base station transmission includes: receive described community in predetermined resource position publicly-owned Message.

Further, be demodulated including based on demodulated reference signal DMRS message publicly-owned to described community: based on At least one under type message publicly-owned to described community is demodulated: single-ended oral instructions based on demodulated reference signal DMRS Two-port space diversity defeated, based on demodulated reference signal DMRS, two-port based on demodulated reference signal DMRS Send diversity, four ports based on demodulated reference signal DMRS send diversity.

According to a further aspect in the invention, it is provided that a kind of massage transmission device, including: transport module, for based on solution Adjust the publicly-owned message in reference signal DMRS transmission community.

Further, described transport module includes: based on the publicly-owned message at least one following transmission means described community of transmission: Single port based on demodulated reference signal DMRS transmission, two-port space diversity based on demodulated reference signal DMRS, Two-port based on demodulated reference signal DMRS sends diversity, four ports based on demodulated reference signal DMRS send Diversity.

Further, described transport module includes: scrambling unit, scrambles cyclic redundancy for message publicly-owned to described community Check code CRC mask, wherein, described CRC mask is used for notifying transmission means described in terminal；Transmission unit, is used for The publicly-owned message in community after scrambling is transferred to described terminal.

According to a further aspect in the invention, it is provided that a kind of message demodulation device, including: receiver module, it is used for receiving base Stand send the publicly-owned message in community；Demodulation module, for disappearing to described community is publicly-owned based on demodulated reference signal DMRS Breath is demodulated.

Further, described receiver module includes: receive unit, publicly-owned for receiving described community in predetermined resource position Message.

Further, described demodulation module includes: demodulating unit, is used for based at least one in the following manner described community Publicly-owned message is demodulated: single port based on demodulated reference signal DMRS is transmitted, based on demodulated reference signal DMRS Two-port space diversity, two-port based on demodulated reference signal DMRS send diversity, based on demodulated reference signal Four ports of DMRS send diversity.

By the present invention, use based on the publicly-owned message in demodulated reference signal DMRS transmission community, solve correlation technique Present in cannot ensure the problem that the publicly-owned message in community is transmitted based on DMRS, and then it is public to have reached guarantee community There is the effect that message is transmitted based on DMRS.

Accompanying drawing explanation

Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, the present invention Schematic description and description be used for explaining the present invention, be not intended that inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 is the schematic diagram of the frame structure of the mode of frequency division duplexing according to correlation technique；

Fig. 2 is the schematic diagram of the frame structure of the TDD mode according to correlation technique；

Fig. 3 is that the PBCH according to correlation technique sends schematic diagram within the 40ms cycle；

Fig. 4 is a PRB centering Resource Unit schematic diagram according to embodiments of the present invention；

Fig. 5 is the schematic diagram using the Resource Unit used when sending diversity transmission mode according to embodiments of the present invention；

Fig. 6 is the flow chart of message demodulation method according to embodiments of the present invention；

Fig. 7 is the structured flowchart of massage transmission device according to embodiments of the present invention；

Fig. 8 is the structured flowchart of transport module 72 in massage transmission device according to embodiments of the present invention；

Fig. 9 is the structured flowchart of message demodulation device according to embodiments of the present invention；

Figure 10 is the structured flowchart of receiver module 92 in message demodulation device according to embodiments of the present invention；

Figure 11 is the structured flowchart of demodulation module 94 in message demodulation device according to embodiments of the present invention.

Detailed description of the invention

Below with reference to accompanying drawing and describe the present invention in detail in conjunction with the embodiments.It should be noted that in the feelings do not conflicted Under condition, the embodiment in the application and the feature in embodiment can be mutually combined.

It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second " Etc. being for distinguishing similar object, without being used for describing specific order or precedence, in each embodiment, community Publicly-owned message can also be referred to as publicly-owned message.

Providing a kind of method for message transmission in the present embodiment, the method includes: based on demodulated reference signal DMRS The publicly-owned message in transmission community.

Community publicly-owned message can be effectively ensured by the method to be transmitted based on DMRS, solve in correlation technique Exist cannot ensure the problem that the publicly-owned message in community is transmitted based on DMRS.

When transmitting the publicly-owned message in community based on DMRS, can there is multiple transmission means, in an optional embodiment In, include based on the publicly-owned message in demodulated reference signal DMRS transmission community: pass based at least one following transmission means The publicly-owned message in Shu Gai community: single port based on demodulated reference signal DMRS is transmitted, based on demodulated reference signal DMRS Two-port space diversity, two-port based on demodulated reference signal DMRS send diversity, based on demodulated reference signal Four ports of DMRS send diversity.Certainly, transmission means is not limited only to above-mentioned several, it is also possible to have other Transmission means.

In an optional embodiment, the publicly-owned message in above-mentioned community can include at least one of: primary system information Block MIB, system information block SIB, accidental access response (Random Access Response, referred to as RAR), seek Exhale Paging.

The sequence number (this port sequence number can represent with port-index) of above-mentioned port can the most at least it One determines: the serial number fixed value of this port；The sequence number of this port is determined based on predefined value；According to cell ID ID Cell_ID determines the sequence number of this port；The sequence number of this port is determined according to main synchronization sequence number and/or auxiliary synchronization sequence number.Wherein, Transmitting based on DMRS for publicly-owned message, simple consideration can use a kind of port based on a kind of transmission means design Port, especially MIB message, as first message received, does not has any indication signaling to use, preferably makes By fixing transmission means, can simply fix as port7-10 and use port7 exactly or can also join according to other Number can calculate.Such as: port_index=port (7+Cell_ID mod 4), or port_index=port (7+ID_PSS+ID_SSS mod 2) etc., wherein, ID_PSS is master sync signal (Primary Synchronization Signal, referred to as PSS) mark (Identify, referred to as ID), ID_SSS is auxiliary synchronous signals (Secondary Synchronization Signal, referred to as SSS) mark (Identify, referred to as ID).Certainly this fixed form is from property Can also is that space diversity from the point of view of energy, send the transmission means such as diversity.

Transmit the publicly-owned message in above-mentioned community based on demodulated reference signal DMRS to may include that based on demodulated reference signal DMRS utilizes multiple Physical Resource Block PRB to the publicly-owned message in transmission community, and wherein, PRB centering includes multiple resource Unit R E；When above-mentioned transmission means is single port based on demodulated reference signal DMRS transmission, the plurality of PRB The precoding of each PRB of centering the single port to being used is the most identical, part is identical or different, when the plurality of When the pre-encoding unit split-phase of each PRB of PRB centering the single port to being used is same or different, each PRB pair The precoding of the single port used can be by determining at random.Wherein, in this transmission means, community is publicly-owned disappears in carrying Each PRB of breath is identical to the precoding of used single port, and owing to being the transmission of publicly-owned message, transmission message is for little All or part of terminal in district, uses open-loop precoding mode, can each PRB to identical, or each PRB is to making Precoding by determining at random, such as each PRB uses open-loop precoding set, or each PRB to poll To randomly selecting, or all PRB are to randomly selecting and different.

In an optional embodiment, when transmitting the publicly-owned message in community based on demodulated reference signal DMRS, permissible By based on demodulated reference signal DMRS utilize multiple Physical Resource Block PRB to transmitting this community publicly-owned message, wherein, Each PRB centering includes multiple Resource Unit RE；At two-port space diversity based on demodulated reference signal DMRS, base Two-port in demodulated reference signal DMRS sends diversity, four ports based on demodulated reference signal DMRS send and divide In the transmission means of collection at least one the transmission publicly-owned message in above-mentioned community time, the sequence number of this first port can be by such as At least one under type determines: the serial number fixed value of this first port, determine this first port based on predefined value Sequence number, determine the sequence number of this first port according to cell ID ID, according to main synchronization sequence number and/or auxiliary synchronization sequence number Determine the sequence number of this first port.Wherein, when using space diversity, transmission diversity, the determination of first port is as above. The sequence number of these other ports can according to before these other ports it has been determined that the sequence number of port be determined, such as, When determining the sequence number of second port, can determine again according to aforesaid way or enter according to fixed first port Row determines, when sending diversity as used and use two-port, and port2_Index=port1_Index+1；As used space to divide When collection and use two-port, port2_Index=port1_Index+2；As used 4 ports to be transmitted, the 3rd, 4 The determination mode of individual port can be carried out really according to first port or fixed non-first port or their combination Fixed, when using four ports such as transmission diversity, port3_Index=port2_Index+1, port4_Index=port3_Index+1； Or port3_Index=port2_Index+3, port4_Index=port3_Index+2；Or port3_Index= Port1_Index+4, port4_Index=port1_Index+6.

When the transmission means of two-port space diversity based on demodulated reference signal DMRS transmits the publicly-owned message in above-mentioned community Time, can at least one in the following way determine the sequence number of two-port: in all available RE of multiple PRB centerings, A same RE only corresponding port, adjacent RE or the adjacent RE of time-frequency domain in RE adjacent on frequency domain, time domain Corresponding different port；The RE of same PRB centering uses the RE correspondence of same port and adjacent PRB centering not Same port；After same PRB centering carries out first frequency domain to available RE, time domain is sequentially numbered, and wherein, frequency domain carries The minimum RE of ripple numbering minimum and time-domain OFDM symbol numbering as initial RE and numbered 0, numbered odd number A corresponding port, another port of the correspondence of numbered even number.Fig. 4 is a PRB according to embodiments of the present invention Centering Resource Unit schematic diagram, as shown in Figure 4,1 PRB pair, in all available RE, available RE is publicly-owned The RE that message can use, as removed traditional Physical Downlink Control Channel (Physical Downlink Control Channel, referred to as PDCCH) RE that takies of legacy PDCCH region and this PRB centering, the most same The most corresponding pilot frequency port of Resource Unit RE, adjacent R E is used alternatingly different port, adjacent R E such as Fig. 4 on frequency domain In A and B, or in time domain in adjacent R E A and C as shown in Figure 4, or time-frequency domain adjacent R E such as Fig. 4 A with B, C correspondence different port；Or the RE of same PRB centering uses same port and the RE of adjacent PRB centering Corresponding different port, the such as PRB of the publicly-owned message in transmission community are individual to there being x (this x is positive integer), serial number x The all available RE of rear odd number PRB centering is used a port and all of even number PRB centering can use by individual PRB RE uses another port；Or same PRB centering (can also be from other numerals from the beginning of sequence number 0 to available RE Start) sequentially number and another port of correspondence that one port numbering of correspondence is even number of numbered odd number. Use space diversity mode when transmitting two-port be used alternatingly port7,9} (general Cyclic Prefix (normal Cyclic Prefix, Or normal CP)) or { port7,8} (extended cyclic prefix (extended Cyclic Prefix, or extended CP)).

When two-port based on demodulated reference signal DMRS sends diversity, four ends based on demodulated reference signal DMRS Mouthful send diversity transmission means at least one transmission the publicly-owned message in this community time, can be determined as follows this Two-port or four ports: use take the different demodulated reference signal DMRS pilot frequency port of identical RE as two-port or Four ports.Wherein, when using transmission diversity, it is possible to use two-port sends diversity 2TX1RX, or two-port sends Diversity 2TX2RX, or four ports transmission diversity 4TX1RX, or four ports transmission diversity 4TX2RX.For 2TX1RX Or 2TX2RX, be preferably used port7,8}, for 4TX1RX or 4TX2RX, be preferably used port 7,8,11, 13}, the REs of black during the REs, port8 of black use as shown in Figure 4 during wherein port7 uses as shown in Figure 4, Port11 uses the REs, port13 of middle black as shown in Figure 4 to use the REs of middle black as shown in Figure 4, now can RE resource as much as possible is retained for data.

Wherein, utilize multiple Physical Resource Block PRB to transmission community publicly-owned message bag based on demodulated reference signal DMRS Include: determine the RE of the ability possessing the publicly-owned message in transmission community in the resource area that the publicly-owned message in this community uses；Utilize The RE determined transmits the publicly-owned message in this community.

In an optional embodiment, determine the resource area that community publicly-owned message uses to possess transmission community is publicly-owned and disappear The RE of the ability of breath includes at least one of: by RE all in addition to the RE that demodulated reference signal DMRS takies As the RE determined；Using all RE in addition to the RE that demodulated reference signal DMRS and port 0 to X takies as The RE determined, wherein, X value is 1 or 3；By the RE taken except demodulated reference signal DMRS and extra sky The outer all RE of 4 remaining RE are as the RE determined；Using all RE as the RE determined；Will be except port 0 to X The outer all RE of the RE taken are as the RE determined, wherein, X value is 1 or 3.It is to say, it is available determining Can be in the following ways during Resource Unit: using RE all in addition to the RE that DMRS takies as available RE, i.e. In resource area in addition to the RE that DMRS uses, remaining RE both functions as available RE in order to carry publicly-owned message；Will In addition to the RE that DMRS and port 0 to X (wherein X value can be 1 or 3) takies, all RE are as available In addition to the RE that RE and port0-X used except DMRS in RE, i.e. data area takies, remaining RE both functions as can With RE in order to carry publicly-owned message, wherein when subframe 0 uses the CRS pilot tone of 1 or 2 ports, available RE does not wraps Including the RE shared by port0 and 1, when subframe 0 uses 4 port CRS pilot tone, available RE does not include Port0-3 Shared RE；Using all RE in addition to the RE taken except DMRS and the most vacant 4 RE as available RE, The most now there is marriage problem during RE pairing space-frequency coding, when there is no CSI-RS, need to vacate 4RE, such as Fig. 5 Shown in, Fig. 5 is the schematic diagram using the Resource Unit used when sending diversity transmission mode according to embodiments of the present invention. Vacant 4 RE are preferably and take with DMRS pilot tone that RE place OFDM symbol is identical and subcarrier number is different Resource Unit；RE all in this region are not used pilot tone as the publicly-owned message in available RE, i.e. this subframe, money In source region, all RE both function as available RE；Using in this region in addition to the RE that port 0-X takies all RE as Available RE, now the value of X is ibid.

In an optional embodiment, being stated as above-mentioned, 4 the most vacant RE include: with DMRS Pilot tone takies that RE place OFDM symbol is identical and to take RE place subcarrier number from this DMRS pilot tone different RE。

Above-mentioned RE and the use of channel state information reference signals CSI-RS for transmitting the publicly-owned message in community determined May there is conflict in Resource Unit, when the resource that the RE determined uses with channel state information reference signals CSI-RS During unit conflict, can at least one in the following way the transmission publicly-owned message in this community or CSI-RS: prioritised transmission is little The publicly-owned message in district；Prioritised transmission CSI-RS；Reconfigure the Resource Unit that CSI-RS uses, utilize after reconfiguring Resource Unit transmits this CSI-RS.

Wherein, the Resource Unit reconfiguring this CSI-RS use includes: by one or two time slot of PRB centering Subcarrier number is 0, orthogonal frequency division multiplex OFDM symbol number be 5,6 Resource Unit be configured to CSI-RS use Resource Unit；And/or, it is 11 by one or two time slot subcarrier number of a PRB centering, OFDM The numbered Resource Unit of 5,6 of OFDM symbol is configured to the Resource Unit that CSI-RS uses.Wherein, available resources list When the Resource Unit that unit uses with CSI-RS conflicts, processing mode comprises one below: this publicly-owned message of prioritised transmission is (same The publicly-owned message in above-mentioned community), i.e. destroy CSI-RS, the RE sending conflict is used for publicly-owned message and uses；Preferential biography Defeated CSI-RS, the most publicly-owned message does not use the RE that CSI-RS takies, and resource is not mapped to the RE that conflicts when mapping, or Resource maps to conflict but is struck off, and conflict RE uses for CSI-RS；Use that CSI-RS is newly configured makes it use It is 0 that Resource Unit is positioned at a PRB centering subcarrier number, OFDM symbol numbered 5,6, or one PRB pair Sub-carriers numbered 11, the numbered Resource Unit of 5,6 of OFDM symbol, this situation preferably makes in publicly-owned message With when sending diversity transmission mode, be equivalent to use that CSI-RS is newly configured to be made its shared RE be positioned at publicly-owned message to make With sending the RE that diversity transmission space-time remainder is come, one of them is i.e. positioned at one such as RE position out vacant in Fig. 5 Individual PRB centering subcarrier number is 0, the numbered Resource Unit of 5,6 of OFDM symbol, time slot 1 in Figure 5 Same rule is all used with 2.

In an optional embodiment, for transmit the RE of the publicly-owned message in above-mentioned community in different subframes residing Resource area is different, and resource area can include at least one region below: except traditional physical down in subframe 0,5 Control the part OFDM symbol outside channel legacy PDCCH region；Except traditional physical down control in other subframes Part or all of OFDM symbol outside channel legacy PDCCH region processed.That is, the resource that above-mentioned publicly-owned message uses Region is different in different subframes, preferably uses part OFDM in subframe 0,5 in addition to legacy PDCCH region Symbol, i.e. subframe 0,5 are only capable of in time domain use part OFDM symbol, except legacy PDCCH in other subframes Part or all of OFDM symbol is used, during wherein legacy PDCCH region generally uses a subframe front 1 outside region To 3 OFDM symbol.Concrete use in other subframes in addition to legacy PDCCH all OFDM symbol or Front 4 OFDM symbol or use the first time slot all OFDM symbol in addition to legacy PDCCH in second time slot Number or use the second time slot all OFDM symbol.

In an optional embodiment, include based on the publicly-owned message in demodulated reference signal DMRS transmission community: to little CRC (Cyclic Redundancy Check, the referred to as CRC) scrambling mask of the publicly-owned message in district, its In, this mask is used for notifying the above-mentioned transmission means of terminal；The publicly-owned message in community after scrambling is transferred to terminal.Wherein, Mask can also be not added with, as transmitted SIB, or only use a kind of transmission means transmission MIB；Low cost and coverage enhancement Time be based only upon DMRS and transmit MIB, now can most add 4 kinds of masks and imply and notify four kinds of different port transmission； Mixing is when based on CRS and transmit based on DMRS, most adds 3 kinds for CRC mask, now correspondence to DMRS Transmit and also have identical mask, most 3 kinds.Now can carry out one_to_one corresponding, single port correspondence single port, two-port Corresponding space diversity, four port correspondences send diversity.

In an optional embodiment, the kind of the mask of the CRC of message publicly-owned to above-mentioned community scrambling less than or etc. In 4.

MIB is transmitted, from the point of view of simple enforcement, is preferably based on a kind of fixing port7 transmission.MIB passes Defeated substantially cannot implement before information notice, unless notified by PSS/SSS.Therefore, can also be many based on DMRS Kind attempt demodulation, as:

(1) single port (based on cell ID)；

(2) space diversity (port7,9)；

(3) sending diversity SFBC 2TX1RX, wherein SFBC is space-frequency block codes (Space Frequency Block Code)；

(4) sending diversity SFBC 4TX1RX, wherein SFBC is space-frequency block codes (Space Frequency Block Code)；

These several possible modes attempt repeatedly receiving, use different CRC masks to carry out above-mentioned different transmission means Distinguish, as shown in table 1.Table 1 shows four kinds of CRC masks.

Table 1

In an optional embodiment, when the publicly-owned message in above-mentioned community is MIB, the CRC of message publicly-owned to community The sequence of the mask of scrambling can determine according to subframe 0 small area reference signal CRS port number.Wherein, when above-mentioned When the publicly-owned message in community is MIB, the mask code sequence of the CRC scrambling of message publicly-owned to this community is according to CRS in subframe 0 Port number determines, including: the mask code sequence of the CRC scrambling of message publicly-owned to this community is different in each subframe, as Identical with the mask code sequence difference of the subframe 0 of radio frames each in 40ms cycle when transmitting based on CRS；Public to this community The mask code sequence having the CRC of message to scramble is identical in each subframe.

In above-mentioned transmission means, the scrambling code identification that used when transmitting based on DMRS (scrambler identity, Referred to as SCID) value be fixed value or for the implicit value determined, wherein, this implicit value determined can be according to not Determine with type of message or cell ID ID.Wherein, use port7,8 time, its SCID has different values {0、1}.Transmitting for publicly-owned message, if MIB message, this value cannot notify, if SIB, this value may Notified by MIB.When using DMRS for the transmission of publicly-owned message, in its initial value, SCID value is the most fixing, such as 3. Or 2 can also be used for PBCH, owing to ePDCCH Yu PBCH does not appears in identical 6PRB pair, because of Even this uses identical SCID.Or determine SCID value according to different type of messages, if MIB is with 2, SIB With 3, RAR is with 4, and Paging is with 5.Or imply according to community ID and determine the SCID used when publicly-owned message is transmitted Value, such as SCID=Cell_ID mod X, wherein X preferred value may for set 2,3,4,5,6,7, in 8} One or more.

In an optional embodiment, when the publicly-owned message in above-mentioned community is SIB, RAR or Paging, based on After the publicly-owned message in demodulated reference signal DMRS transmission community, also include: below physical layer signaling notice terminal At least one parameter: transmission means, port numbers, SCID.Wherein, when transmit publicly-owned message be SIB or RAR or Paging Time, use physical layer signaling to notify at least one following parameter: transmission means, port numbers, SCID.As used 2 ratios Spy notifies the one in four kinds of transmission means, or uses 2 bits or 3 bit notification port numbers and SCID value.

In an optional embodiment, include based on the publicly-owned message in demodulated reference signal DMRS transmission community: based on Demodulated reference signal DMRS repeats to transmit the publicly-owned message in community, wherein, when the number of times repeating transmission is more than 1, holds This subframe repeating transmission of row carries out at least one in the following way repeating transmission: the subframe that all execution repeat transmission is equal Use transmission means based on DMRS；Part performs to repeat the subframe of transmission and uses transmission means based on DMRS same Shi Qiyu performs to repeat the subframe of transmission and uses transmission means based on cell reference signals CRS；Part performs to repeat to pass Defeated subframe uses transmission means based on DMRS remaining subframe performing to repeat transmission simultaneously to use based on cell reference The transmission means of signal CRS and DMRS；Part performs to repeat the subframe of transmission and uses based on cell reference signals CRS Transmission means simultaneously remaining subframe performing to repeat transmission do not use pilot tone.Wherein, transmission is repeated when the publicly-owned message of transmission When number of times is more than 1, when i.e. coverage enhancement uses and repeats transmission, this transmission means repeating transmission includes: all repetition passes Defeated subframe all uses transmission means based on DMRS；Or part subframe uses transmission means based on DMRS same Shi Qiyu subframe uses transmission means based on CRS, as non-MBSFN sub-frame uses transmission means based on CRS, MBSFN sub-frame uses transmission means based on DMRS；Or part subframe only uses transmission side based on DMRS Formula remaining subframe simultaneously uses transmission means based on CRS and DMRS, i.e. MBSFN sub-frame to use based on DMRS Transmission means, non-MBSFN sub-frame uses two kinds of pilot tones of CRS and DMRS to carry out channel estimation simultaneously；Or portion Molecule frame uses transmission means based on CRS remaining subframe simultaneously not use pilot tone, i.e. repeats transmission and uses based on CRS Transmission means, the most do not use pilot tone, use the channel estimation results of adjacent subframe.

Wherein, when the subframe performing to repeat to transmit uses the transmission means more than a kind of pilot type, based on DMRS In the CRC of the publicly-owned message in subframe small area of transmission, the mask of scrambling is publicly-owned with the subframe small area transmitted based on CRS disappears In the CRC of breath, the mask of scrambling is identical.Wherein, the determination mode of this mask is referred to the side in aforesaid embodiment Case.

Sequence in an optional embodiment, when the publicly-owned message in above-mentioned community is MIB, to the mask of MIB scrambling Arrange CRS port number in the subframe 0 in the subframe place radio frames repeating transmission according to execution to determine.Wherein, these public affairs When having message to be MIB and repeat transmission, the scrambler sequence adding this publicly-owned message is according to CRS port number in subframe 0 Mesh determines, including: the scrambler sequence adding this publicly-owned message is different, such as each nothing in the 40ms cycle in each subframe Some subframes in line frame are with the scrambler sequence of the subframe 0 of each radio frames in 40ms cycle when transmitting based on CRS respectively Identical；The scrambler sequence adding this publicly-owned message is identical in each subframe.

Fig. 6 is the flow chart of message demodulation method according to embodiments of the present invention, and as shown in Figure 6, the method includes as follows Step:

Step S602, receives the publicly-owned message in community that base station sends；

Step S604, is demodulated based on demodulated reference signal DMRS message publicly-owned to this community.

Pass through above-mentioned steps, it is achieved that the purpose that the publicly-owned message in community is transmitted based on DMRS, solve relevant skill The problem that the publicly-owned message in community is transmitted based on DMRS cannot be ensured present in art, and then reached guarantee community The effect that publicly-owned message is transmitted based on DMRS.

In an optional embodiment, the publicly-owned message in community receiving base station transmission includes: receive in predetermined resource position The publicly-owned message in this community.Wherein, this predetermined resource location can actively be told terminal by base station, or by terminal Send what association requests carried out obtaining to base station, or determine by other means.

In an optional embodiment, it is demodulated including based on demodulated reference signal DMRS message publicly-owned to community: It is demodulated based at least one in the following manner message publicly-owned to community: single port based on demodulated reference signal DMRS Transmission, two-port space diversity based on demodulated reference signal DMRS, two ends based on demodulated reference signal DMRS Mouth sends diversity, four ports based on demodulated reference signal DMRS send diversity.

In an optional embodiment, the publicly-owned message in above-mentioned community can include at least one of: host system message block MIB, system information block SIB, accidental access response RAR, paging Paging.

Through the above description of the embodiments, those skilled in the art is it can be understood that arrive according to above-described embodiment Method can add the mode of required general hardware platform by software and realize, naturally it is also possible to by hardware, but a lot In the case of the former is more preferably embodiment.Based on such understanding, technical scheme is the most in other words to existing The part having technology to contribute can embody with the form of software product, and this computer software product is stored in one In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions with so that a station terminal equipment (can To be mobile phone, computer, server, or the network equipment etc.) method that performs each embodiment of the present invention.

Additionally providing a kind of massage transmission device in the present embodiment, this device is used for realizing above-described embodiment and being preferable to carry out Mode, had carried out repeating no more of explanation.As used below, term " module " can realize predetermined function Software and/or the combination of hardware.Although the device described by following example preferably realizes with software, but firmly Part, or the realization of the combination of software and hardware also may and be contemplated.

Fig. 7 is the structured flowchart of massage transmission device according to embodiments of the present invention, as it is shown in fig. 7, this device includes passing Defeated module 72, illustrates this device below.

Transport module 72, for based on the publicly-owned message in demodulated reference signal DMRS transmission community.

In an optional embodiment, above-mentioned transport module 72 includes: transmit based at least one following transmission means The publicly-owned message in community: single port based on demodulated reference signal DMRS transmission, based on demodulated reference signal DMRS Two-port space diversity, two-port based on demodulated reference signal DMRS send diversity, based on demodulated reference signal Four ports of DMRS send diversity.Certainly, transmission means is not limited only to above-mentioned several, it is also possible to have other Transmission means.

In an optional embodiment, the publicly-owned message in above-mentioned community can include at least one of: primary system information Block MIB, system information block SIB, accidental access response RAR, paging Paging.

The sequence number (this port sequence number can represent with port-index) of above-mentioned port can the most at least it One determines: the serial number fixed value of this port；The sequence number of this port is determined based on predefined value；According to cell ID ID Cell_ID determines the sequence number of this port；The sequence number of this port is determined according to main synchronization sequence number and/or auxiliary synchronization sequence number.Wherein, Transmitting based on DMRS for publicly-owned message, simple consideration can use a kind of port based on a kind of transmission means design Port, especially MIB message, as first message received, does not has any indication signaling to use, preferably makes By fixing transmission means, can simply fix as port7-10 and use port7 exactly or can also join according to other Number can calculate.Such as: port_index=port (7+Cell_ID mod 4), or Port_index=port (7+ID_PSS+ID_SSS mod 2) etc., wherein, ID_PSS is master sync signal (Primary Synchronization Signal, referred to as PSS) mark (Identify, referred to as ID), ID_SSS is that auxiliary synchronization is believed Number (Secondary Synchronization Signal, referred to as SSS) mark (Identify, referred to as ID).Certainly This fixed form can also is that space diversity from the point of view of performance, sends the transmission means such as diversity.

Transmit the publicly-owned message in above-mentioned community based on demodulated reference signal DMRS to include: based on demodulated reference signal DMRS Utilizing multiple Physical Resource Block PRB to the publicly-owned message in transmission community, wherein, PRB centering includes multiple Resource Unit RE； When above-mentioned transmission means is single port based on demodulated reference signal DMRS transmission, each of the plurality of PRB centering The precoding of the PRB single port to being used is the most identical, part is identical or different, when the plurality of PRB centering When the pre-encoding unit split-phase of each PRB single port to being used is same or different, each PRB list to being used The precoding of port can be by determining at random.Wherein, in this transmission means, carry each of the publicly-owned message in community PRB is identical to the precoding of used single port, owing to being the transmission of publicly-owned message, transmission message in community all or Part terminal, use open-loop precoding mode, can each PRB to identical, or each PRB to use precoding By determining at random, such as each PRB uses open-loop precoding set to poll, or each PRB is to randomly selecting, Or all PRB is to randomly selecting and different.

In an optional embodiment, when transmitting the publicly-owned message in community based on demodulated reference signal DMRS, permissible By based on demodulated reference signal DMRS utilize multiple Physical Resource Block PRB to transmitting this community publicly-owned message, wherein, This PRB centering includes multiple Resource Unit RE.At two-port space diversity based on demodulated reference signal DMRS, base Two-port in demodulated reference signal DMRS sends diversity, four ports based on demodulated reference signal DMRS send and divide In the transmission means of collection at least one the transmission publicly-owned message in above-mentioned community time, the sequence number of this first port can be by such as At least one under type determines: the serial number fixed value of this first port, determine this first port based on predefined value Sequence number, determine the sequence number of this first port according to cell ID ID, according to main synchronization sequence number and/or auxiliary synchronization sequence number Determine the sequence number of this first port.Wherein, when using space diversity, transmission diversity, the determination of first port is as above. The sequence number of these other ports can according to before these other ports it has been determined that the sequence number of port be determined, such as, When determining the sequence number of second port, can determine again according to aforesaid way or enter according to fixed first port Row determines, when sending diversity as used and use two-port, and port2_Index=port1_Index+1；As used space to divide When collection and use two-port, port2_Index=port1_Index+2；As used 4 ports to be transmitted, the 3rd, 4 The determination mode of individual port can be carried out really according to first port or fixed non-first port or their combination Fixed, when using four ports such as transmission diversity, port3_Index=port2_Index+1, port4_Index=port3_Index+1； Or port3_Index=port2_Index+3, port4_Index=port3_Index+2；Or port3_Index= Port1_Index+4, port4_Index=port1_Index+6.

When the transmission means of two-port space diversity based on demodulated reference signal DMRS transmits the publicly-owned message in above-mentioned community Time, can at least one in the following way determine the sequence number of two-port: in all available RE of multiple PRB centerings, A same RE only corresponding port, adjacent RE or the adjacent RE of time-frequency domain in RE adjacent on frequency domain, time domain Corresponding different port；The RE of same PRB centering uses the RE correspondence of same port and adjacent PRB centering not Same port；After same PRB centering carries out first frequency domain to available RE, time domain is sequentially numbered, and wherein, frequency domain carries The minimum RE of ripple numbering minimum and time-domain OFDM symbol numbering as initial RE and numbered 0, numbered odd number A corresponding port, another port of the correspondence of numbered even number.As shown in Figure 4,1 PRB pair, all available In RE, available RE is the RE that publicly-owned message can use, as removed traditional Physical Downlink Control Channel (Physical Downlink Control Channel, referred to as PDCCH) legacy PDCCH region and this PRB centering take The most corresponding pilot frequency port of RE, the most same Resource Unit RE, adjacent R E is used alternatingly different port, frequency domain Upper adjacent R E such as A and B in Fig. 4, or adjacent R E A and C as shown in Figure 4 in time domain, or time-frequency domain is adjacent The corresponding different port of A with B, C in RE such as Fig. 4；Or the RE of same PRB centering uses same port and phase (this x is for the most whole to there being x for the RE correspondence different port of adjacent PRB centering, the such as PRB of the publicly-owned message in transmission community Number) individual, serial number x PRB uses a port and even number to all available RE of rear odd number PRB centering The all available RE of PRB centering uses another port；Or same PRB centering to available RE from the beginning of sequence number 0 (can also be from the beginning of other numerals) sequentially number and one port numbering of correspondence of numbered odd number is even Another port of correspondence of number.Use space diversity mode when transmitting two-port be used alternatingly that { port7,9} (typically circulate Prefix (normal Cyclic Prefix, or normal CP)) or { port7,8} (extended cyclic prefix (extended Cyclic Prefix, or extended CP)).

In an optional embodiment, determine the resource area that community publicly-owned message uses to possess transmission community is publicly-owned and disappear The RE of the ability of breath includes at least one of: by RE all in addition to the RE that demodulated reference signal DMRS takies As the RE determined；Using all RE in addition to the RE that demodulated reference signal DMRS and port 0 to X takies as The RE determined, wherein, X value is 1 or 3；By the RE taken except demodulated reference signal DMRS and extra sky The outer all RE of 4 remaining RE are as the RE determined；Using all RE as the RE determined；Will be except port 0 to X The outer all RE of the RE taken are as the RE determined, wherein, X value is 1 or 3.It is to say, it is available determining Can be in the following ways during Resource Unit: using RE all in addition to the RE that DMRS takies as available RE, i.e. In resource area in addition to the RE that DMRS uses, remaining RE both functions as available RE in order to carry publicly-owned message；Will In addition to the RE that DMRS and port 0 to X (wherein X value can be 1 or 3) takies, all RE are as available In addition to the RE that RE and port0-X used except DMRS in RE, i.e. data area takies, remaining RE both functions as can With RE in order to carry publicly-owned message, wherein when subframe 0 uses the CRS pilot tone of 1 or 2 ports, available RE does not wraps Including the RE shared by port0 and 1, when subframe 0 uses 4 port CRS pilot tone, available RE does not include Port0-3 Shared RE；Using all RE in addition to the RE taken except DMRS and the most vacant 4 RE as available RE, The most now there is marriage problem during RE pairing space-frequency coding, when there is no CSI-RS, need to vacate 4RE, such as Fig. 5 Shown in.Vacant 4 RE are preferably and take with DMRS pilot tone that RE place OFDM symbol is identical and subcarrier number Different Resource Unit；RE all in this region are not used as the publicly-owned message in available RE, i.e. this subframe and leads Frequently, in resource area, all RE both function as available RE；This region will be owned in addition to the RE that port 0-X takies RE is as available RE, and now the value of X is ibid.

Fig. 8 is the structured flowchart of transport module 72 in massage transmission device according to embodiments of the present invention, as shown in Figure 8, This transport module 72 includes scrambling unit 82 and transmission unit 84, illustrates this transport module 72 below.

Scrambling unit 82, for message publicly-owned to community CRC (Cyclic Redundancy Check, Referred to as CRC) scrambling mask, wherein, this mask is used for notifying terminal transmission mode；Transmission unit 84, is connected to Above-mentioned scrambling unit 82, for being transferred to terminal by the publicly-owned message in community after scrambling.Wherein, it is also possible to be not added with mask, As transmitted SIB, or only use a kind of transmission means transmission MIB；It is based only upon DMRS when low cost and coverage enhancement Transmission MIB, now can most add 4 kinds of masks and imply and notify four kinds of different port transmission；Mix based on CRS and When transmitting based on DMRS, the mask for CRC scrambling most adds 3 kinds, and now corresponding also has DMRS transmission Identical mask, most 3 kinds.Now can carry out one_to_one corresponding, single port correspondence single port, two-port correspondence space Diversity, four port correspondences send diversity.

(1) single port (based on cell ID)；

(2) space diversity (port7,9)；

These several possible modes attempt repeatedly receiving, use different masks to make a distinction above-mentioned different transmission means, As shown in Table 1 above.In an optional embodiment, when the publicly-owned message in above-mentioned community is MIB, public to community The sequence having the mask that the CRC of message scrambles can determine according to subframe 0 small area reference signal CRS port number. Wherein, when the publicly-owned message in above-mentioned community is MIB, the mask code sequence of the CRC of message publicly-owned to this community scrambling according to In subframe 0, CRS port number determines, including: the mask code sequence of the CRC scrambling of message publicly-owned to this community is at each Subframe is different, as identical with the mask code sequence difference of the subframe 0 of each radio frames in 40ms cycle when transmitting based on CRS； The mask code sequence of the CRC scrambling of message publicly-owned to this community is identical in each subframe.

In above-mentioned transmission means, the value of the scrambling code identification SCID used when transmitting based on DMRS be fixed value or For the implicit value determined, wherein, this implicit value determined can be to determine according to different messages type or cell ID ID 's.Wherein, use port7,8 time, its SCID have different value 0,1}.Publicly-owned message is transmitted, as Fruit is MIB message, and this value cannot notify, if SIB, this value may be notified by MIB.Publicly-owned message is passed During defeated use DMRS, in its initial value, SCID value is the most fixing, such as 3.Or 2 can also be used for PBCH, Owing to ePDCCH Yu PBCH does not appears in identical 6PRB pair, even therefore using identical SCID.Or Determining SCID value according to different type of messages, if MIB is with 2, SIB is with 3, and RAR is with 4, and Paging is with 5. Or imply according to community ID and determine the SCID value used when publicly-owned message is transmitted, such as SCID=Cell_ID mod X, Wherein X preferred value may for set 2,3,4,5,6,7, one or more in 8}.

Fig. 9 is the structured flowchart of message demodulation device according to embodiments of the present invention, as it is shown in figure 9, this device includes connecing Receive module 92 and demodulation module 94, below this device is illustrated.

Receiver module 92, for receiving the publicly-owned message in community that base station sends；Demodulation module 94, is connected to above-mentioned reception Module 92, for being demodulated based on demodulated reference signal DMRS message publicly-owned to community.

Figure 10 is the structured flowchart of receiver module 92 in message demodulation device according to embodiments of the present invention, such as Figure 10 institute Showing, this receiver module 92 includes receiving unit 102, illustrates this receiver module 92 below.

Receive unit 102, for receiving the publicly-owned message in above-mentioned community in predetermined resource position.

Figure 11 is the structured flowchart of demodulation module 94 in message demodulation device according to embodiments of the present invention, such as Figure 11 institute Showing, this demodulation module 94 includes demodulating unit 112, illustrates this demodulation module 94 below.

Demodulating unit 112, for being demodulated based at least one in the following manner message publicly-owned to community: based on demodulation ginseng Examine the single port transmission of signal DMRS, two-port space diversity based on demodulated reference signal DMRS, based on demodulation The two-port of reference signal DMRS sends diversity, four ports based on demodulated reference signal DMRS send diversity.

It should be noted that above-mentioned modules can be by software or hardware realizes, for the latter, Ke Yitong Cross in the following manner to realize, but be not limited to this: above-mentioned module is respectively positioned in same processor；Or, above-mentioned module position respectively In multiple processors.

Illustrate below in conjunction with specific embodiment.

Embodiment 1

Mib information in downlink information is transmitted and uses method provided by the present invention to be described in detail by the present embodiment Bright.

Base station uses transmission means based on DMRS transmission mib information, allows to comprise at least 1 in the subframe used Individual MBSFN sub-frame.Wherein, in each radio frames 1 subframe it is preferably used for transmitting MIB, uses 40ms Cycle.And in radio frames, use the part PRB part OFDM symbol to (optimum decision system bandwidth center position) Or all OFDM symbol in addition to legacy PDCCH.And subframe used in each radio frames in the 40ms cycle The scrambler of upper interpolation is different, and each subframe is identical with the scrambler used when transmitting MIB based on CRS.

Base station sends MIB and uses the transmission means of single port, and single port is fixing uses port 7 or according to physical area ID is determined, such as port_index=port (7+Cell_ID mod 4), as now community ID is 64, then according to little The port that district ID determines is port 7.Fixed value is taken, preferably for SCID in the DMRS initiation sequence that used Value is 3.Mib information adds the mask of CRC:<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>.Pass through After chnnel coding, MIB maps to its resource area used, the preferably 6PRB at system bandwidth center to (when being Use 72, center subcarrier when commanding wide corresponding odd number PRB pair total), in subframe in addition to legacy PDCCH institute Have in OFDM symbol or the second time slot front 4 OFDM symbol or use the first time slot in addition to legacy PDCCH All OFDM symbol or use the second time slot all OFDM symbol.

Terminal receives mib information at corresponding resource location, is demodulated based on DMRS transmission means, uses fixing Port port 7 or calculate according to community ID and determine that port is port 7, or attempt demodulation CRC according to different mask Judge to use port port 7.

By the present embodiment, the downlink information transmission method that the application of the invention is proposed, it is ensured that MIB message It is transmitted based on DMRS, and without extra signaling instruction or notice so that disappear based on DMRS transmission MIB Breath simple possible.

Embodiment 2

The present embodiment uses method provided by the present invention to the mib information in downlink information at coverage enhancement scene transfer It is described in detail explanation.

Base station uses transmission means transmission mib information based on mixing CRS and DMRS, every in using the 40ms cycle The subframe 0 of individual radio frames and extra X sub-frame transmission mib information, wherein X=4 × M, the value that M is possible For 1,2,3,4,5,6,7,8,9}.Wherein X subframe allows to comprise at least one MBSFN sub-frame. Wherein, in each radio frames 2 subframes are preferably used for transmitting MIB, preferably subframe 0 and subframe 5 or subframe 0 and a MBSFN sub-frame, use the 40ms cycle.CRS two-port port 0,1 transmission is used in subframe 0. The part PRB institute in addition to legacy PDCCH to (optimum decision system bandwidth center position) is used in another subframe There are OFDM symbol or part OFDM symbol.And the number in subframe used in each radio frames in the 40ms cycle Different according to the scrambler added.The scrambler that data in 2 subframes in same radio frames are added is identical, in same radio frames Use the scrambler identical with subframe 0.

Base station sends MIB and uses transmission diversity transmission mode based on CRS port 0,1 in subframe 0, at another height Frame uses the transmission means of two-port space diversity (distributed transmission), first port to use port 7, second end Mouth is determined according to first port, such as port2_Index=port1_Index+2, i.e. uses port 9.For being made DMRS initiation sequence in SCID take fixed value, preferably value is 3.Mib information adds the mask of CRC: <1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1>.After chnnel coding, MIB maps to its resource-area used Territory, the preferably 6PRB at system bandwidth center are to (using center when system bandwidth correspondence odd number PRB pair total 72 subcarriers), in subframe in addition to legacy PDCCH front 4 OFDM in all OFDM symbol or the second time slot Symbol or use first time slot all OFDM symbol in addition to legacy PDCCH or use all of the second time slot OFDM symbol.Now the most corresponding port of same Resource Unit RE in this resource area, adjacent on frequency domain RE correspondence different port, 1 PRB pair as shown in Figure 4, the most corresponding pilot tone of the most same Resource Unit RE Port, adjacent R E is used alternatingly different port, the corresponding different port of A with B in adjacent R E such as Fig. 4 on frequency domain.

Terminal receives mib information at corresponding resource location, is demodulated based on mixing CRS and DMRS transmission means, Attempt, according to different masks, the port port 0,1 that demodulation CRC judges to use in subframe 0, use in another subframe Fixed port port 7,9 or attempt demodulation CRC according to different mask and judge to use port port 7,9.

By the present embodiment, the downlink information transmission method that the application of the invention is proposed, it is ensured that MIB message It is transmitted based on DMRS, it is also ensured that be used in mixed way and transmit based on CRS and DMRS under coverage enhancement scene The proper communication of publicly-owned message, reduces propagation delay time.

Embodiment 3

SIB information in downlink information is transmitted and is used method provided by the present invention to be described in detail by the present embodiment Bright.

Base station uses transmission means based on DMRS transmission SIB information, comprises MBSFN in the subframe used Frame.And use in radio frames part PRB to (predefined position/MIB indicating positions) except legacy PDCCH Outer all OFDM symbol.

Base station sends SIB and uses the transmission means of single port, and single port is fixing uses port 7 or according to physical district ID It is determined, such as port_index=port (7+Cell_ID mod 4), as now community ID is 40, then according to community ID The port determined is port 7.Taking fixed value for SCID in the DMRS initiation sequence that used, preferably value is 3.After chnnel coding, SIB maps to its resource area used, preferably 6PRB pair of system bandwidth center, In subframe in addition to legacy PDCCH all OFDM symbol.

Terminal receives SIB information at corresponding resource location, is demodulated based on DMRS transmission means, uses fixing Port port 7 or according to community ID calculate determine that port is port 7.

By the present embodiment, the downlink information transmission method that the application of the invention is proposed, it is ensured that SIB message base It is transmitted in DMRS, and without extra signaling instruction or notice so that transmit SIB message based on DMRS Simple possible.

Embodiment 4

The present embodiment uses method provided by the present invention to the SIB information in downlink information at coverage enhancement scene transfer It is described in detail explanation.

Base station uses transmission means based on DMRS transmission SIB information, uses X sub-frame transmission SIB information, its Middle X is the positive integer more than 1.Wherein X subframe allows to comprise at least one MBSFN sub-frame.In subframe Use part PRB to (optimum decision system bandwidth center position).

Base station sends SIB and uses two-port to send the transmission means of diversity, and first port uses port 7, second end Mouth is determined according to first port, such as port2_Index=port1_Index+1, i.e. uses port 8.For being made DMRS initiation sequence in SCID take fixed value, preferably value is 3.After chnnel coding, MIB maps to it The resource area used, preferably 6PRB pair of system bandwidth center, all in addition to legacy PDCCH in subframe OFDM symbol or use first time slot all OFDM symbol in addition to legacy PDCCH or use the second time slot All OFDM symbol.Now map to the available resources in resource area for will take except DMRS after SIB coding RE and the outer all RE of the most vacant 4 RE as available RE, the most now RE match space-frequency coding time do not having During CSI-RS, need to vacate 4RE, as it is shown in figure 5, vacant 4 RE are preferably takies RE with DMRS pilot tone The Resource Unit that place OFDM symbol is identical and subcarrier number is different；If now available resource units makes with CSI-RS Resource Unit conflict time, prioritised transmission SIB message, or use the newly configured resource list making it use of CSI-RS It is 0 that unit is positioned at a PRB centering subcarrier number, and the numbered Resource Unit of 5,6 of OFDM symbol, at time slot 1 Same rule is all used with 2.

Terminal receives SIB information at corresponding resource location, is demodulated based on DMRS transmission means, at X son Frame uses transmission diversity mode based on port port 7,8 demodulation SIB information.

By the present embodiment, the downlink information transmission method that the application of the invention is proposed, it is ensured that SIB message base It is transmitted in DMRS, it is also ensured that be used in mixed way and transmit publicly-owned message based on DMRS under coverage enhancement scene Proper communication, reduce propagation delay time.

Embodiment 5

RAR or Paging information in downlink information is transmitted and is used method provided by the present invention to carry out in detail by the present embodiment Explanation is carefully described.

Base station uses transmission means based on DMRS transmission RAR or Paging information, comprises in the subframe used MBSFN sub-frame.And use Downlink Control Information DCI scheduling instruction carrying RAR by Physical Downlink Control Channel Or the PDSCH of Paging, the owning in addition to legacy PDCCH of some PRB pair is used by resource distribution instruction OFDM symbol.

Base station sends RAR or Paging information and uses the transmission means of single port, and this single port and SCID value are by DCI Notify, as used 2 bit information instructions 2, i.e. use port8 to use SCID value to be 0, as shown in table 2 simultaneously.

Table 2

2bit in DCI	Message
		0	port 7,n_SCID=0
1	port 7,n_SCID=1
		2	port 8,n_SCID=0
3	port 8,n_SCID=1

The resource area that RAR or Paging information MAP is used to it after chnnel coding, the frequency domain of resource area Number and position are indicated by position i.e. PRB by DCI, and the time-domain position of resource area is except legacy in subframe The outer all OFDM symbol of PDCCH.

First terminal receives Downlink Control Information, receives RAR or Paging at corresponding resource location after demodulating DCI Information, is demodulated based on DMRS transmission means, uses port port 8 and SCID=0.

By the present embodiment, the downlink information transmission method that the application of the invention is proposed, it is ensured that RAR or Paging information is transmitted based on DMRS so that transmit RAR or Paging information simple possible based on DMRS.

Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can To be arranged to storage for the program code performing following steps:

S1, based on the publicly-owned message in demodulated reference signal DMRS transmission community.

Alternatively, storage medium is also configured to storage for the program code performing following steps:

S1, receives the publicly-owned message in community that base station sends；

S2, is demodulated based on demodulated reference signal DMRS message publicly-owned to this community.

Alternatively, in the present embodiment, above-mentioned storage medium can include but not limited to: USB flash disk, read only memory (Random Access Memory is called for short for (Read-Only Memory, referred to as ROM), random access memory For RAM), portable hard drive, the various media that can store program code such as magnetic disc or CD.

Alternatively, the concrete example in the present embodiment is referred to showing described in above-described embodiment and optional embodiment Example, the present embodiment does not repeats them here.

The method for message transmission that the application of the invention is proposed, it is ensured that publicly-owned message is transmitted based on DMRS, It is also ensured that be used in mixed way the proper communication transmitting publicly-owned message based on CRS and DMRS under coverage enhancement scene, Reduce propagation delay time.

Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general Calculating device to realize, they can concentrate on single calculating device, or be distributed in multiple calculating device and formed Network on, alternatively, they can realize, it is thus possible to by them with calculating the executable program code of device Storage is performed by calculating device in the storage device, and in some cases, can hold with the order being different from herein Step shown or described by row, or they are fabricated to respectively each integrated circuit modules, or by many in them Individual module or step are fabricated to single integrated circuit module and realize.So, the present invention is not restricted to any specific hardware Combine with software.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the technology of this area For personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made is any Amendment, equivalent, improvement etc., should be included within the scope of the present invention.

Claims

1. a method for message transmission, it is characterised in that including:

Based on the publicly-owned message in demodulated reference signal DMRS transmission community.

Method the most according to claim 1, it is characterised in that publicly-owned based on demodulated reference signal DMRS transmission community Message includes:

The publicly-owned message in described community is transmitted: based on demodulated reference signal DMRS based at least one following transmission means Single port transmission, two-port space diversity based on demodulated reference signal DMRS, based on demodulated reference signal The two-port of DMRS sends diversity, four ports based on demodulated reference signal DMRS send diversity.

Method the most according to claim 2, it is characterised in that the publicly-owned message in described community includes at least one of: Host system message block MIB, system information block SIB, accidental access response RAR, paging Paging.

Method the most according to claim 2, it is characterised in that the sequence number of port determines at least one in the following way: The serial number fixed value of described port；The sequence number of described port is determined based on predefined value；According to cell ID ID Determine the sequence number of described port；The sequence number of described port is determined according to main synchronization sequence number and/or auxiliary synchronization sequence number.

Method the most according to claim 4, it is characterised in that transmit described community based on demodulated reference signal DMRS Publicly-owned message includes: utilize multiple Physical Resource Block PRB to transmitting described community based on demodulated reference signal DMRS Publicly-owned message, wherein, described PRB centering includes multiple Resource Unit RE；When described transmission means is based on solution When adjusting the single port transmission of reference signal DMRS, each PRB of the plurality of PRB centering is single-ended to used Mouthful precoding the most identical, part is identical or different, when each PRB of the plurality of PRB centering is to being made Single port pre-encoding unit split-phase with or different time, each the PRB described single port to being used pre- Coding is by determining at random.

Method the most according to claim 2, it is characterised in that

Transmit the publicly-owned message in described community based on demodulated reference signal DMRS to include: based on demodulated reference signal DMRS utilizes multiple Physical Resource Block PRB to transmitting the publicly-owned message in described community, wherein, described PRB centering bag Include multiple Resource Unit RE；

When two-port space diversity based on demodulated reference signal DMRS, based on demodulated reference signal DMRS two Port send diversity, based on demodulated reference signal DMRS four ports send diversity transmission means at least it During the one transmission publicly-owned message in described community, the sequence number of first port determines at least one in the following way: described The serial number fixed value of first port, determine the sequence number of described first port based on predefined value, according to community Mark ID determines the sequence number of described first port, determines described the according to main synchronization sequence number and/or auxiliary synchronization sequence number The sequence number of one port；The sequence number of other ports according to before other ports described it has been determined that the sequence number of port It is determined.

Method the most according to claim 6, it is characterised in that when two-port based on demodulated reference signal DMRS is empty Between the transmission means transmission publicly-owned message in described community of diversity time, at least one in the following way determine described two ends The sequence number of mouth:

In all available RE of the plurality of PRB centering, the most corresponding port of same RE, phase on frequency domain Adjacent RE or the adjacent RE correspondence different port of time-frequency domain in adjacent RE, time domain；

The RE of same PRB centering uses same port and the RE correspondence different port of adjacent PRB centering；

After same PRB centering carries out first frequency domain to available RE, time domain is sequentially numbered, and wherein, frequency domain carries The RE that ripple numbering is minimum and time-domain OFDM symbol numbering is minimum is as initial RE and numbered 0, numbered odd number One port of correspondence, another port of the correspondence of numbered even number.

Method the most according to claim 6, it is characterised in that when two-port based on demodulated reference signal DMRS is sent out Send diversity, based on demodulated reference signal DMRS four ports send diversity transmission means at least one transmission During the publicly-owned message in described community, it is determined as follows described two-port or described four ports:

Use and take the different demodulated reference signal DMRS pilot frequency port of identical RE as described two-port or described Four ports.

Method the most according to claim 6, it is characterised in that utilize multiple physics based on demodulated reference signal DMRS Resource Block PRB includes transmitting the publicly-owned message in described community:

Determine that the resource area that the publicly-owned message in described community uses possesses the ability transmitting the publicly-owned message in described community RE；

The described RE determined is utilized to transmit the publicly-owned message in described community.

Method the most according to claim 9, it is characterised in that determine the resource area that the publicly-owned message in described community uses In possess the RE of the ability transmitting described community publicly-owned message and include at least one of:

Using RE all in addition to the RE that demodulated reference signal DMRS takies as the described RE determined；

Using all RE in addition to the RE that demodulated reference signal DMRS and port 0 to X takies as described in determining RE, wherein, X value is 1 or 3；

Using all RE in addition to the RE taken except demodulated reference signal DMRS and the most vacant 4 RE as really Fixed described RE；

Using all RE as the described RE determined；

Using RE all in addition to the RE that port 0 to X takies as the described RE determined, wherein, X value is 1 Or 3.

11. methods according to claim 10, it is characterised in that described 4 the most vacant RE include: with DMRS Pilot tone takies that RE place OFDM symbol is identical and to take RE place subcarrier number from described DMRS pilot tone different RE.

12. methods according to claim 10, it is characterised in that when the described RE determined and channel condition information reference During the Resource Unit conflict that signal CSI-RS uses, transmit at least one in the following way the publicly-owned message in described community Or described CSI-RS:

The publicly-owned message in community described in prioritised transmission；

CSI-RS described in prioritised transmission；

Reconfigure the Resource Unit that described CSI-RS uses, utilize the Resource Unit transmission after reconfiguring described CSI-RS。

13. methods according to claim 12, it is characterised in that reconfigure the Resource Unit that described CSI-RS uses Including:

Being 0 by one or two time slot subcarrier number of a PRB centering, orthogonal frequency division multiplex OFDM symbol is compiled Number be 5,6 Resource Unit be configured to the Resource Unit that described CSI-RS uses；And/or,

It is 11 by one or two time slot subcarrier number of a PRB centering, orthogonal frequency division multiplex OFDM symbol The numbered Resource Unit of 5,6 is configured to the Resource Unit that described CSI-RS uses.

14. methods according to claim 9, it is characterised in that for transmitting the RE of the publicly-owned message in described community not With subframe in residing resource area different, described resource area includes at least one region below:

Part OFDM in addition to traditional Physical Downlink Control Channel legacy PDCCH region symbol in subframe 0,5 Number；

Part or all of in addition to traditional Physical Downlink Control Channel legacy PDCCH region in other subframes OFDM symbol.

15. methods according to claim 3, it is characterised in that publicly-owned based on demodulated reference signal DMRS transmission community Message includes:

The CRC CRC scrambling mask of message publicly-owned to described community, wherein, described mask is used for leading to Know transmission means described in terminal；

The publicly-owned message in community after scrambling is transferred to described terminal.

16. methods according to claim 15, it is characterised in that the institute of the CRC scrambling of message publicly-owned to described community State the kind of mask less than or equal to 4.

17. methods according to claim 15, it is characterised in that when the publicly-owned message in described community is described MIB, The sequence of the described mask of the CRC scrambling of message publicly-owned to described community is according to subframe 0 small area reference signal CRS Port number determines.

18. methods according to claim 2, it is characterised in that in described transmission means, when transmitting based on DMRS The value of the scrambling code identification SCID used is fixed value or for the implicit value determined, wherein, described implicit determines Value determines according to different messages type or cell ID ID.

19. methods according to claim 3, it is characterised in that when the publicly-owned message in described community is SIB, RAR or Paging Time, after transmitting the publicly-owned message in described community based on demodulated reference signal DMRS, also include:

By at least one physical layer signaling notice following parameter of terminal: transmission means, port numbers, SCID.

20. methods according to claim 15, it is characterised in that public based on demodulated reference signal DMRS transmission community Message is had to include: to repeat to transmit the publicly-owned message in described community based on demodulated reference signal DMRS, wherein, work as repetition When the number of times of transmission is more than 1, performs the described subframe repeating transmission and carry out at least one in the following way repeating to pass Defeated:

All execution repeat the subframe of transmission and all use transmission means based on DMRS；

The while that part performing the subframe use transmission means based on DMRS repeating transmission, remaining performs to repeat transmission Subframe use transmission means based on cell reference signals CRS；

The while that part performing the subframe use transmission means based on DMRS repeating transmission, remaining performs to repeat transmission Subframe use transmission means based on cell reference signals CRS and DMRS；

The subframe that part execution repeats to transmit uses transmission means based on cell reference signals CRS, and remaining is held simultaneously Row repeats the subframe of transmission and does not use pilot tone.

21. methods according to claim 20, it is characterised in that when the subframe performing to repeat transmission uses more than a kind During the transmission means of pilot type, in the CRC of the publicly-owned message in subframe small area based on DMRS transmission, scrambling covers Code is identical with the mask of scrambling in the CRC of the publicly-owned message in subframe small area transmitted based on CRS.

22. methods according to claim 20, it is characterised in that when the publicly-owned message in described community is MIB, to institute State the sequence of mask of MIB scrambling according in the subframe 0 performed in the described subframe place radio frames repeating transmission CRS port number determines.

23. 1 kinds of message demodulation methods, it is characterised in that including:

Receive the publicly-owned message in community that base station sends；

It is demodulated based on demodulated reference signal DMRS message publicly-owned to described community.

24. methods according to claim 23, it is characterised in that the publicly-owned message in community receiving base station transmission includes:

The publicly-owned message in described community is received in predetermined resource position.

25. methods according to claim 23, it is characterised in that based on demodulated reference signal DMRS to described community Publicly-owned message is demodulated including:

It is demodulated based at least one in the following manner message publicly-owned to described community: based on demodulated reference signal The single port transmission of DMRS, two-port space diversity based on demodulated reference signal DMRS, based on demodulation reference The two-port of signal DMRS sends diversity, four ports based on demodulated reference signal DMRS send diversity.

26. according to the method according to any one of claim 23 to 25, it is characterised in that the publicly-owned message in described community includes At least one of: host system message block MIB, system information block SIB, accidental access response RAR, paging Paging.

27. 1 kinds of massage transmission devices, it is characterised in that including:

Transport module, for based on the publicly-owned message in demodulated reference signal DMRS transmission community.

28. devices according to claim 27, it is characterised in that described transport module includes:

29. devices according to claim 28, it is characterised in that the publicly-owned message in described community includes at least one of: Host system message block MIB, system information block SIB, accidental access response RAR, paging Paging.

30. devices according to claim 29, it is characterised in that described transport module includes:

Scrambling unit, scrambles CRC CRC mask, wherein, institute for message publicly-owned to described community State CRC mask for notifying transmission means described in terminal；

Transmission unit, for being transferred to described terminal by the publicly-owned message in community after scrambling.

31. 1 kinds of message demodulation devices, it is characterised in that including:

Receiver module, for receiving the publicly-owned message in community that base station sends；

Demodulation module, for being demodulated based on demodulated reference signal DMRS message publicly-owned to described community.

32. devices according to claim 31, it is characterised in that described receiver module includes:

Receive unit, for receiving the publicly-owned message in described community in predetermined resource position.

33. devices according to claim 31, it is characterised in that described demodulation module includes:

Demodulating unit, for being demodulated based at least one in the following manner message publicly-owned to described community: based on solution Adjust the single port transmission of reference signal DMRS, two-port space diversity based on demodulated reference signal DMRS, base Two-port in demodulated reference signal DMRS sends diversity, four ports based on demodulated reference signal DMRS send Diversity.

34. according to the device according to any one of claim 31 to 33, it is characterised in that the publicly-owned message in described community includes At least one of: host system message block MIB, system information block SIB, accidental access response RAR, paging Paging.