CN103384163B - The transmission method of Physical Broadcast Channel and equipment - Google Patents

The transmission method of Physical Broadcast Channel and equipment Download PDF

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Publication number
CN103384163B
CN103384163B CN201210138651.8A CN201210138651A CN103384163B CN 103384163 B CN103384163 B CN 103384163B CN 201210138651 A CN201210138651 A CN 201210138651A CN 103384163 B CN103384163 B CN 103384163B
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pbch
antenna port
drs
reference signal
downlink reference
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CN103384163A (en
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高雪娟
潘学明
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Priority to PCT/CN2013/075073 priority patent/WO2013163952A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated

Abstract

The embodiment of the invention discloses the transmission method of a kind of Physical Broadcast Channel PBCH and equipment, relate to wireless communication technology field, for providing a kind of PBCH transmission plan can being applied on new carrier type.In the present invention, base station is transmitted in subframe at PBCH, the antenna port at place on corresponding RE is transmitted at this for the downlink reference signal followed the tracks of for the downlink reference signal followed the tracks of based on what PBCH transfer resource comprised, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at this for the downlink reference signal demodulated, PBCH is carried out resource mapping, and sends PBCH according to resource mapping result.Visible, PBCH according to the reference signal transmission feature on new carrier type, can be carried out more rational resource and maps so that the program can apply on new carrier type, to improve resource utilization and PBCH transmission performance by this programme.

Description

The transmission method of Physical Broadcast Channel and equipment
Technical field
The present invention relates to wireless communication field, particularly relate to transmission method and the equipment of a kind of Physical Broadcast Channel.
Background technology
In long-term evolution upgrading (LongTermEvolution-Advanced, LTE-A) system, the peak rate of system has huge raising than Long Term Evolution (LongTermEvolution, LTE) system, it is desirable to reach descending 1Gbps, up 500Mbps.Therefore, lte-a system needs terminal extension available bandwidth, by the multiple continuous or discrete carrier aggregation under same base station (eNB) together, is subscriber equipment (UserEquipment, UE) service, to provide required speed, as shown in Figure 1 simultaneously.These carrier waves condensed together are also called member carrier (ComponentCarrier, CC).Each community can be a member carrier, and the community (member carrier) under different eNB can not be polymerized.In order to ensure that the UE in LTE system can at the carrier operation of each polymerization, each carrier wave is maximum less than 20MHz.
Downlink reference signal in lte-a system mainly includes community own reference signal (Cell-specificReferenceSignals, CRS), downlink user DRS (Dedicated Reference Signal) (UE-specificReferenceSignal, URS, or also become DownlinkorDedicatedReferenceSignal, DRS), location reference signals (PositioningReferenceSignal, PRS), channel state information reference signals (ChannelStateInformationReferenceSignal, CSI-RS).
CRS supports 1, 2, 4 antenna port transmission, it is arranged respectively at antenna port p=0, p=0, 1, p=0, 1, 2, 3, it is mainly used in Physical Broadcast Channel (PhysicalBroadcastChannel, PBCH), Physical Downlink Control Channel (PhysicalDownlinkControlChannel, PDCCH), physical mixed automatic repeat request instruction channel (PhysicalHARQIndicationChannel, PHICH), Physical Control Format Indicator Channel (PhysicalControlFormatIndicatorChannel, PCIFCH), Physical Downlink Shared Channel (PhysicalDownlinkSharedChannel, etc. PDSCH) data demodulation, at a Physical Resource Block (PhysicalResourceBlock, PRB) mapping mode in is as shown in Figure 2 a and 2 b.Wherein, Fig. 2 a is the mapping mode under conventional cyclic prefix (CyclicPrefix, CP), and Fig. 2 b is the mapping mode under extension CP.
DRS supports 1 ~ 8 antenna port transmission, can be only fitted to antenna port p=5, p=7, p=8, p=7,8 ..., υ+6, wherein υ is transport layer (Layer) number of PDSCH, DRS mapping position on antenna port 7/8/11/13 is identical, and the DRS mapping position on antenna port 9/10/12/14 is identical, as shown in Figure 3 a and Figure 3 b shows.Wherein, Fig. 3 a is the mapping mode under conventional CP, and Fig. 3 b is the mapping mode under extension CP.DRS only sends on the PRB at PDSCH place adopting transmission mode 7 ~ 9.Version 10(Rel-10) middle regulation, in same subframe, there are 6 PRB in the middle of the PRB(such as subdistrict frequency band that resource is overlapping at DRS and PBCH or synchronizing signal) time, DRS will not send in these PRB, therefore the PDSCH transmission in these PRB can not demodulate based on DRS, but PDSCH can demodulate based on CRS in these PRB.
PBCH in lte-a system was updated with 40ms for the cycle, front four OFDM (OrthogonalFrequencyDivisionMultiplexing of the 2nd time slot (i.e. time slot 1) of the subframe 0 of each radio frames in 4 radio frames of continuous print, OFDM) symbol transmits, fixing 72 subcarriers taking subdistrict frequency band central authorities on frequency domain, as shown in figures 4 a and 4b, wherein, Fig. 4 a is the mapping mode under conventional CP, if Fig. 4 b is the mapping mode under extension CP.Wherein the PBCH in each radio frames can both independently decode.PBCH supports that single antenna port and multi-antenna port launch two kinds of transmission means of diversity transmission, during 2 antenna port transmission, adopt space frequency block coding (Space-FrequencyBlockCoding, SFBC) scheme, PBCH is needed to transmit the available resource units (ResourceElement in the OFDM symbol at place, RE) number is even number, during 4 antenna port transmission, adopt SFBC and frequency error factor transmission diversity (FrequencySwitchedTransmitDiversity, FSTD) scheme combined, needing the PBCH available RE number transmitted in the OFDM symbol at place is the integral multiple of 4.PBCH always transmits hypothesis based on the CRS of 4 antenna ports and carries out resource mapping, and its available RE resource is that its transmission removes the RE beyond the RE corresponding for CRS of 4 antenna ports on the ofdm symbols.Therefore, under conventional CP, the PBCH available RE number within the 40ms cycle is 4 × 6 × [4 × 12-8]=960(4 radio frames, each radio frames frequency domain accounts for 6 PRB, time domains account for 4 OFDM symbol, there are 8 RE corresponding for CRS in 4 OFDM symbol) in each PRB, owing to PBCH adopts QPSK (QuadraturePhase-ShiftKeying, QPSK) modulation, PBCH number of coded bits within the 40ms cycle is 960 × 2=1920, in like manner, under extension CP, number of coded bits is 2 × 4 × 6 × [4 × 12-12]=1728.
PBCH is used for carrying Master Information Block (MasterInformationBlock, MIB), carry some main cell physical layer information, the UE parameter tentatively accessing system is enable for transmitting, including: the downlink system bandwidth of this community, PHICH configuration and System Frame Number (SystemFrameNumber, SFN).MIB only carries most important 8 bit SFN information, the SFN information of other 2 bits can be obtained by PBCH decoded implicit, namely decode the PBCH obtained radio frames position in 40ms interval according to reality to obtain, first radio frames correspondence 00, second radio frames correspondence 01,3rd radio frames correspondence 10, the 4th radio frames correspondence 11.Additionally, PBCH is demodulated based on CRS, the CRS antenna port number of use can pass through cyclic redundancy check (CRC) (CyclicRedundancyCheck, the CRC) information to PBCH and use different scramble sequence to represent, as shown in table 1.UE is by the scramble sequence of the CRC of blind check PBCH, it is possible to obtain this antenna port number.The channels such as PDCCH, PHICH, PCFICH use the CRS antenna port number identical with PBCH.
CRS transmission antenna PBCH CRC scramble sequence
1 <0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>
2 <1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1>
4 <0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1>
Table 1
In order to improve resource utilization ratio further, the version 10(Rel-11 of lte-a system) determine new carrier type (AdditionalCarrierType or NewCarrierType of introducing, NCT), to strengthen system spectrum utilization rate, better support heterogeneous network, to reduce power consumption.
At present, how NCT carrier wave carries out the transmission of PBCH, but without concrete implementation scheme.
Summary of the invention
The embodiment of the present invention provides transmission method and the equipment of a kind of Physical Broadcast Channel, for providing a kind of PBCH transmission plan can being applied on NCT carrier wave.
A kind of transmission method of Physical Broadcast Channel PBCH, the method includes:
Base station is transmitted in subframe at PBCH, Resource Unit RE corresponding on the antenna port at place is transmitted for the downlink reference signal followed the tracks of at the described downlink reference signal for following the tracks of based on what PBCH transfer resource comprised, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at the described downlink reference signal for demodulating, described PBCH is carried out resource mapping；Wherein, the described downlink reference signal for following the tracks of at least includes the community own reference signal CRS for following the tracks of, and the described downlink reference signal for demodulating at least includes downlink user DRS (Dedicated Reference Signal) DRS；
Described base station sends described PBCH according to resource mapping result.
A kind of transmission method of Physical Broadcast Channel PBCH, the method includes:
Terminal transmits the antenna port at place on corresponding Resource Unit RE for the downlink reference signal followed the tracks of at the described downlink reference signal for following the tracks of based on what comprise in PBCH transfer resource, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at the described downlink reference signal for demodulating, receive PBCH；
Wherein, the described downlink reference signal for following the tracks of at least includes the community own reference signal CRS for following the tracks of, and the described downlink reference signal for demodulating at least includes downlink user DRS (Dedicated Reference Signal) DRS.
A kind of base station, this base station includes:
Resource mapping unit, for transmitting in subframe at PBCH, Resource Unit RE corresponding on the antenna port at place is transmitted for the downlink reference signal followed the tracks of at the described downlink reference signal for following the tracks of based on what PBCH transfer resource comprised, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at the described downlink reference signal for demodulating, described PBCH is carried out resource mapping；Wherein, the described downlink reference signal for following the tracks of at least includes the community own reference signal CRS for following the tracks of, and the described downlink reference signal for demodulating at least includes downlink user DRS (Dedicated Reference Signal) DRS；
Transmitting element, for sending described PBCH according to resource mapping result.
A kind of terminal, this terminal includes:
Receive unit, for transmitting the antenna port at place on corresponding Resource Unit RE for the downlink reference signal followed the tracks of at the described downlink reference signal for following the tracks of based on what PBCH transfer resource comprised, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at the described downlink reference signal for demodulating, receive PBCH；Wherein, the described downlink reference signal for following the tracks of at least includes the community own reference signal CRS for following the tracks of, and the described downlink reference signal for demodulating at least includes downlink user DRS (Dedicated Reference Signal) DRS；
Acquiring unit, for according to the PBCH received, obtaining carrier information.
In this programme, base station is transmitted in subframe at PBCH, the antenna port at place on corresponding RE is transmitted at this for the downlink reference signal followed the tracks of for the downlink reference signal followed the tracks of based on what PBCH transfer resource comprised, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at this for the downlink reference signal demodulated, PBCH is carried out resource mapping, and sends PBCH according to resource mapping result.Visible, this programme when PBCH being carried out resource and mapping according on new carrier type for the downlink reference signal followed the tracks of and/or RE corresponding on the downlink reference signal antenna port demodulated, PBCH carries out more rational resource map, make the PBCH transmission that the program can apply on NCT carrier wave, to improve resource utilization and PBCH transmission performance.
Accompanying drawing explanation
Fig. 1 is carrier aggregation schematic diagram of the prior art；
Fig. 2 a is that the CRS of the prior art resource under conventional CP maps schematic diagram；
Fig. 2 b is that the CRS of the prior art resource under extension CP maps schematic diagram；
Fig. 3 a is that the DRS of the prior art resource under conventional CP maps schematic diagram；
Fig. 3 b is that the DRS of the prior art resource under extension CP maps schematic diagram；
Fig. 4 a is that the PBCH of the prior art resource under conventional CP maps schematic diagram；
Fig. 4 b is that the PBCH of the prior art resource under extension CP maps schematic diagram；
The method flow schematic diagram that Fig. 5 provides for the embodiment of the present invention；
The other method schematic flow sheet that Fig. 6 provides for the embodiment of the present invention；
Fig. 7 a is a kind of resource mapping method that in the embodiment of the present invention, 2 antenna port PBCH launch diversity；
Fig. 7 b is the another kind of resource mapping method that in the embodiment of the present invention, 2 antenna port PBCH launch diversity；
Fig. 7 c is another resource mapping method that in the embodiment of the present invention, 2 antenna port PBCH launch diversity；
Fig. 7 d is another resource mapping method that in the embodiment of the present invention, 2 antenna port PBCH launch diversity；
Fig. 8 a is a kind of resource mapping method that in the embodiment of the present invention, 4 antenna port PBCH launch diversity；
Fig. 8 b is the another kind of resource mapping method that in the embodiment of the present invention, 4 antenna port PBCH launch diversity；
Fig. 8 c is another resource mapping method that in the embodiment of the present invention, 4 antenna port PBCH launch diversity；
Fig. 8 d is another resource mapping method that in the embodiment of the present invention, 4 antenna port PBCH launch diversity；
The device structure schematic diagram that Fig. 9 provides for the embodiment of the present invention；
Another device structure schematic diagram that Figure 10 provides for the embodiment of the present invention.
Detailed description of the invention
For NCT carrier wave programme of work just under discussion, the conclusion reached at present includes: support transmit with the 5ms CRS being the cycle on single antenna port (antenna port 0), CRS be not used in downlink data demodulate, be only used for following the tracks of and measuring；In Rel-11, NCT carrier wave can not work alone, need to the carrier wave associated working of a tradition (legacy)；According to whether receiving terminal exists certain deviation with legacy carrier wave in time domain and frequency domain, it is divided into sync carrier and asynchronous carrier wave, the latter needs to carry out independent Time and Frequency Synchronization and processes, therefore NCT carrier wave needs synchronous signal transmission, the time-frequency domain resources of synchronous transmission of signal need to be not overlapping with the resource of the downlink reference signals such as CRS and DRS, to improve the down transmission efficiency of NCT carrier wave.Additionally, in Rel-12 and later release, NCT carrier wave is likely to support and works alone.
Based on above-mentioned analysis, on NCT carrier wave, the CRS transmission of definition at present is not used in the demodulation of downlink data transmission, the downlink data transmission such as PBCH, PDCCH, PHCIH, PCIFCH, PDSCH are likely to need to be demodulated based on DRS, and when PBCH and DRS exists overlapping, the PRB at PBCH place cannot transmit downlink data, thus reducing NCT carrier wave down transmission efficiency；Additionally, only exist 1 antenna port CRS transmission on NCT carrier wave, PBCH does not need to always assume that 4 antenna port CRS carry out resource mapping.
Referring to Fig. 5, the embodiment of the present invention is for the above-mentioned characteristic of NCT carrier wave, it is provided that the transmission method of a kind of PBCH for base station side, comprises the following steps:
Step 50: base station is transmitted in subframe at PBCH, the antenna port at place on corresponding Resource Unit (RE) is transmitted at this for the downlink reference signal followed the tracks of for the downlink reference signal followed the tracks of based on what PBCH transfer resource comprised, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at this for the downlink reference signal demodulated, PBCH is carried out resource mapping；Wherein, at least include the community own reference (CRS) for following the tracks of for the downlink reference signal followed the tracks of, at least include downlink user DRS (Dedicated Reference Signal) (DRS) for the downlink reference signal demodulated；
Step 51: base station sends PBCH according to resource mapping result, the resource that namely base station maps in step 50 sends PBCH.
Further, base station also sends the downlink reference signal for demodulating PBCH, is DRS or the CRS for demodulating for demodulating the downlink reference signal of PBCH.
As a kind of situation, when the downlink reference signal being used for demodulating PBCH is DRS, in step 50, base station carries out to adopt the one in following seven kinds of methods when resource maps:
First, PBCH is mapped on the whole RE in PBCH transfer resource；
Second, PBCH is mapped in PBCH transfer resource except the downlink reference signal for following the tracks of is at these other RE except the downlink reference signal followed the tracks of transmits RE corresponding on the antenna port at place；
3rd, PBCH is mapped in PBCH transfer resource except the downlink reference signal for demodulating is at these other RE except the downlink reference signal demodulated transmits RE corresponding on the antenna port at place；
4th, PBCH is mapped in PBCH transfer resource except the downlink reference signal for demodulating is at this corresponding RE and for other RE except the RE that this is corresponding on the antenna port at the downlink reference signal transmission place followed the tracks of of the downlink reference signal followed the tracks of on the antenna port at the downlink reference signal transmission place demodulated；
5th, on other RE PBCH being mapped in PBCH transfer resource except RE corresponding on antenna port 0 for CRS；
6th, on other RE PBCH being mapped in PBCH transfer resource except RE corresponding on K the antenna port that this DRS transmits place for DRS；
7th, on other RE PBCH being mapped in PBCH transfer resource except RE corresponding on antenna port 0 for RE and CRS corresponding on K the antenna port that this DRS transmits place for DRS.
Adopting above-mentioned first method, when namely PBCH is mapped on the whole RE in PBCH transfer resource by base station, PBCH coded-bit of carrying under conventional cyclic prefix (CP) and extension CP is 2304 bits；
Adopting above-mentioned fifth method, namely time on other RE that PBCH is mapped in PBCH transfer resource except RE corresponding on antenna port 0 for CRS by base station, PBCH coded-bit of carrying under conventional CP is 2208 bits, and under extension CP, the coded-bit of carrying is 2112 bits；
Adopting above-mentioned 6th kind of method, namely time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on K the antenna port that described DRS transmits place for DRS by base station, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B] bit, wherein, B is the number of RE corresponding on K the antenna port that this DRS transmits place for DRS in PBCH transfer resource；
Adopting above-mentioned 7th kind of method, namely time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for RE and CRS corresponding on K the antenna port that described DRS transmits place for DRS by base station, PBCH coded-bit of carrying under conventional CP is 48* [46-B] bit, under extension CP, the coded-bit of carrying is 48* [44-B] bit, wherein, B is the number of RE corresponding on K the antenna port that this DRS transmits place for DRS in PBCH transfer resource.
Preferably, any one adopting in above-mentioned seven kinds of methods carry out resource map time, particularly adopt above-mentioned the first, the third, or the 6th kind of method, namely in base station, PBCH is mapped on the whole RE in PBCH transfer resource, or except the downlink reference signal for demodulating is at these other RE except the downlink reference signal demodulated transmits RE corresponding on the antenna port at place in PBCH transfer resource, or in PBCH transfer resource except DRS this DRS transmit place K antenna port on correspondence RE except other RE on time, at least one in following two conditions need to be met:
Condition 1: the subframe that base station sends the downlink reference signal for following the tracks of is different from the subframe (namely PBCH transmits subframe) sending PBCH；Or,
The Physical Resource Block (PRB) that base station sends the downlink reference signal for following the tracks of is different from the PRB sending PBCH；Or,
The subframe of the base station transmission downlink reference signal for following the tracks of is different from the subframe sending PBCH, and base station transmission is different for the PRB of the PRB and transmission PBCH of the downlink reference signal followed the tracks of.
Condition 2: the subframe that base station sends the CRS for following the tracks of is different from the subframe sending PBCH；Or,
PRB and the PRB sending PBCH that base station sends the CRS for following the tracks of are different；Or,
The subframe that base station sends the CRS for following the tracks of is different from the subframe sending PBCH, and, PRB and the PRB sending PBCH that base station sends the CRS for following the tracks of are different.
Preferably, any one adopting in above-mentioned seven kinds of methods carry out resource map time, particularly adopt above-mentioned the first, the second, or during fifth method, namely in base station, PBCH is mapped on the whole RE in PBCH transfer resource, or except the downlink reference signal for following the tracks of is at these other RE except the downlink reference signal followed the tracks of transmits RE corresponding on the antenna port at place in PBCH transfer resource, or in PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS time, need to meet: transmit in subframe and/or time slot at PBCH, OFDM (OFDM) symbol that PBCH transmits place is different from the OFDM symbol that DRS transmits place.
When adopting P antenna port to launch diversity transmission PBCH in base station:
Base station comprises the downlink reference signal for following the tracks of and/or the downlink reference signal OFDM symbol of the RE of correspondence on the antenna port at its transmission place for demodulating in PBCH transfer resource, vacate the available RE of part and do not carry out PBCH resource mapping, so that for transmitting the integral multiple that number is P of the RE of PBCH in this OFDM symbol；Wherein, P=2 or 4, available RE is except the downlink reference signal for following the tracks of and/or other RE except the RE that the downlink reference signal that demodulates is corresponding on the antenna port at its transmission place in this OFDM symbol in PBCH transfer resource.It is preferred that for the OFDM symbol of the integral multiple that available RE number is P in above-mentioned OFDM symbol, PBCH can be mapped on all available RE on this OFDM, namely do not vacate the available RE of part or determine that the available RE number vacated is 0.
Preferably, above-mentioned part of vacating can use the RE method not carrying out PBCH resource mapping, relatively it is applicable for use with the second, the third, 4th kind, 5th kind, PBCH is carried out resource when mapping by the 6th kind or the 7th kind of method, namely PBCH is mapped in PBCH transfer resource except the downlink reference signal for following the tracks of is at this RE corresponding on the antenna port at the downlink reference signal transmission place followed the tracks of by base station, and/or time on other RE outside the RE that this is corresponding on the antenna port at the downlink reference signal transmission place demodulated of the downlink reference signal that demodulates, or, PBCH is mapped in PBCH transfer resource except RE corresponding on antenna port 0 for CRS by base station, and/or DRS is when this DRS transmits on other RE outside RE corresponding on K the antenna port at place.
Illustrate, when adopting in base station 2 antenna ports to launch diversity transmission PBCH, vacate the available RE of the part method not carrying out PBCH resource mapping and can adopt such as the method for Fig. 7 a to Fig. 7 d.When adopting in base station 4 antenna ports to launch diversity transmission PBCH, vacate the available RE of the part method not carrying out PBCH resource mapping and can adopt such as the method for Fig. 8 a to Fig. 8 d.Fig. 7 a to Fig. 7 d, MutedRE are RE, the GroupedRE vacated to be 2 the be RE for PBCH transmission of a pair；Fig. 8 a to Fig. 8 d, MutedRE are RE, the GroupedRE vacated to be 4 the be RE for PBCH transmission of a pair.Be equipped with oblique line and indicate CRS for for CRS transmission RE.
Accordingly, adopting fifth method, namely time on other RE that PBCH is mapped in PBCH transfer resource except RE corresponding on antenna port 0 for CRS by base station, PBCH coded-bit of carrying under conventional CP is 48* [46-A] bit, under extension CP, the coded-bit of carrying is 48* [44-A] bit, wherein, A is the number of the RE vacated；Or,
Adopting the 6th kind of method, namely time on other RE that PBCH is mapped in PBCH transfer resource except RE corresponding on K the antenna port that this DRS transmits place for DRS by base station, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that this DRS transmits place for DRS in PBCH transfer resource；Or,
Adopting the 7th kind of method, namely time on other RE that PBCH is mapped in PBCH transfer resource except RE corresponding on antenna port 0 for RE and CRS corresponding on K the antenna port that this DRS transmits place for DRS by base station, PBCH coded-bit of carrying under conventional CP is 48* [46-B-A] bit, under extension CP, the coded-bit of carrying is 48* [44-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that this DRS transmits place for DRS in PBCH transfer resource.
The value of above-mentioned K can be 1 or 2 or 4, as K=1；It is antenna port 5 or antenna port 7 or antenna port 8 that DRS transmits K the antenna port at place；When K is more than 1, it is that antenna port 7 arrives antenna port K+6 that DRS transmits K the antenna port at place.
When being used for demodulating the downlink reference signal of PBCH and being DRS, in step 51, base station is when sending PBCH, the Cyclic Redundancy Check of PBCH is not carried out scrambling, and it is the antenna port number made an appointment that the DRS for demodulating PBCH transmits the antenna port number at place；Or,
The antenna port number at place and the corresponding relation of scramble sequence are transmitted according to the DRS for demodulating PBCH set in base station, determine the currently transmitted scramble sequence corresponding for the DRS the demodulating PBCH antenna port number used, and using this scramble sequence that the CRC of PBCH is carried out scrambling, scramble sequence represents that the DRS for demodulating PBCH transmits the antenna port number at place.
Downlink reference signal for following the tracks of can also include: one or more combinations in PRS, CSI-RS.
As another kind of situation, as the CRS that the downlink reference signal being used for demodulating PBCH is for demodulating, in step 50, PBCH is carried out can adopting when resource maps any one in the following two kinds method by base station:
First, on other RE PBCH being mapped in PBCH transfer resource except RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 for CRS；
Second, on other RE PBCH being mapped in PBCH transfer resource except RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 for RE and CRS corresponding on the antenna port that this DRS transmits place for DRS.
When adopting above-mentioned second method, namely when PBCH is mapped in described PBCH transfer resource except DRS other RE except this DRS transmits RE and CRS corresponding on the antenna port at place RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 by base station, PBCH coded-bit of carrying under conventional CP is 48* [40-B] bit, under extension CP, the coded-bit of carrying is 48* [36-B] bit, wherein, B is the number of RE corresponding on the antenna port that this DRS transmits place for DRS in PBCH transfer resource.
Base station sends the CRS for demodulating PBCH, and concrete grammar can be such that
The CRS sent in subframe for demodulating PBCH is transmitted at PBCH, or transmit PBCH in subframe at PBCH and transmit the CRS sent on PRB corresponding to RE for demodulating PBCH, or in PBCH transmits the time slot at the PBCH transmission place in subframe, send the CRS for demodulating PBCH, or PBCH transmits the CRS sent in PRB corresponding to RE for demodulating PBCH in PBCH transmits the time slot of the transmission PBCH in subframe, or transmit the CRS sent in the OFDM symbol transmit PBCH for demodulating PBCH in subframe at PBCH, or transmit in PRB corresponding for PBCH transmission RE in subframe at PBCH in the OFDM symbol transmit PBCH, send the CRS for demodulating PBCH.
In this method, DRS is initialized by base station according to equation below one or formula two:
Formula one:
Formula two:
Wherein, nSCIDFor the parameter relevant to multi-user Multiinputoutput MU-MIMO, PBCH can be made an appointment into fixed value, for instance 0 or 1；Transmit the numbering of subframe for PBCH, namely each subframe initializes once；X is the exclusive parameter of UE, PBCH can be made an appointment into fixed value, and the value of X is integer；For cell ID.
In this method, it is the subframe for PBCH transmission set in advance that PBCH transmits subframe, for instance the subframe 0 in each radio frames.PBCH transfer resource is that set in advance, PBCH transmits PBCH in subframe and transmits in the PRB at place for transmitting the set of the RE of the OFDM symbol (front 4 OFDM symbol of second time slot of the subframe 0 in such as each radio frames) of PBCH.PBCH transmits PBCH in subframe and transmits the PRB that the PRB at place can be 72 subcarrier places of frequency band central authorities, i.e. 6 PRB etc. of frequency band central authorities.
Referring to Fig. 6, the embodiment of the present invention provides the transmission method of a kind of PBCH for end side, and the method comprises the following steps:
Step 60: terminal transmits the antenna port at place on corresponding RE at this for the downlink reference signal followed the tracks of for the downlink reference signal followed the tracks of based on what comprise in PBCH transfer resource, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at this for the downlink reference signal demodulated, receive PBCH；Wherein, at least include the CRS for following the tracks of for the downlink reference signal followed the tracks of, at least include DRS for the downlink reference signal demodulated.
Further, after step 60, it is possible to comprise the steps:
Step 61: terminal, according to the PBCH received, obtains carrier information.
Further, terminal also receives the downlink reference signal for demodulating PBCH, is DRS or the CRS for demodulating for demodulating the downlink reference signal of PBCH.
As a kind of situation, when the downlink reference signal being used for demodulating PBCH is DRS, in step 60, terminal receives PBCH, specifically can adopt the one in following seven kinds of methods::
First, on the whole RE in PBCH transfer resource, receive PBCH；Or,
Second, except the downlink reference signal for following the tracks of is at these other RE except the downlink reference signal followed the tracks of transmits RE corresponding on the antenna port at place in PBCH transfer resource, receive PBCH；
3rd, except the downlink reference signal for demodulating is at these other RE except the downlink reference signal demodulated transmits RE corresponding on the antenna port at place in PBCH transfer resource, receive this PBCH；
4th, except the downlink reference signal for demodulating is at this corresponding RE and for other RE except the RE that this is corresponding on the antenna port at the downlink reference signal transmission place followed the tracks of of the downlink reference signal followed the tracks of on the antenna port at the downlink reference signal transmission place demodulated in PBCH transfer resource, receive PBCH；
5th, in PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS, receive PBCH；Or,
6th, except on DRS other RE except DRS transmits RE corresponding on K the antenna port at place in PBCH transfer resource, reception PBCH；
7th, except on DRS other RE except this DRS transmits RE and CRS corresponding on K the antenna port at place RE corresponding on antenna port 0 in PBCH transfer resource, reception PBCH.
Adopting above-mentioned first method, namely on the terminal whole RE in PBCH transfer resource, when receiving PBCH, PBCH coded-bit of carrying under conventional CP and extension CP is 2304 bits；
Adopting above-mentioned fifth method, namely terminal in PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS time, when receiving PBCH, PBCH coded-bit of carrying under conventional CP is 2208 bits, and under extension CP, the coded-bit of carrying is 2112 bits；
Adopting above-mentioned 6th kind of method, namely terminal in PBCH transfer resource except DRS this DRS transmit place K antenna port on correspondence RE except other RE on, when receiving PBCH, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B] bit, wherein, B is the number of RE corresponding on K the antenna port that this DRS transmits place for DRS in PBCH transfer resource；
Adopting above-mentioned 7th kind of method, namely terminal in PBCH transfer resource except DRS transmits RE and CRS corresponding on K the antenna port at place on antenna port 0 on other RE except the RE of correspondence at this DRS, when receiving PBCH, PBCH coded-bit of carrying under conventional CP is 48* [46-B] bit, under extension CP, the coded-bit of carrying is 48* [44-B] bit, wherein, B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource.
Preferably, when any one adopting in above-mentioned seven kinds of methods receives PBCH, particularly adopt above-mentioned the first, the third, or the 6th kind of method, namely on the terminal whole RE in PBCH transfer resource, or except the downlink reference signal for demodulating is at these other RE except the downlink reference signal demodulated transmits RE corresponding on the antenna port at place in PBCH transfer resource, or in PBCH transfer resource except DRS this DRS transmit place K antenna port on correspondence RE except other RE on, when receiving PBCH, need to meet: the subframe that terminal receives the downlink reference signal for following the tracks of is different from the subframe receiving PBCH, and/or, it is different from receiving the PBCH PRB used that terminal receives the PRB of the downlink reference signal for following the tracks of；Or,
The subframe that terminal receives the CRS for following the tracks of is different from the subframe receiving PBCH, and/or, PRB and the PRB receiving PBCH that terminal receives the CRS for following the tracks of are different.
Preferably, when any one adopting in above-mentioned seven kinds of methods receives PBCH, particularly adopt above-mentioned the first, the second, or during fifth method, namely on the terminal whole RE in PBCH transfer resource, or except the downlink reference signal for following the tracks of is at these other RE except the downlink reference signal followed the tracks of transmits RE corresponding on the antenna port at place in PBCH transfer resource, or in PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS, when receiving PBCH, need to meet: transmit in subframe and/or time slot at PBCH, the OFDM symbol that PBCH transmits place is different from the OFDM symbol that DRS transmits place.
When terminal adopts P antenna port to launch diversity reception PBCH:
Terminal comprises the downlink reference signal for following the tracks of and/or the downlink reference signal OFDM symbol of the RE of correspondence on the antenna port at its transmission place for demodulating in PBCH transfer resource, vacate the available RE of part and do not receive PBCH, so that terminal is when adopting P antenna port to launch diversity reception PBCH, for transmitting the integral multiple that number is P of the RE of PBCH in this OFDM symbol；Wherein, P=2 or 4, this available RE be in PBCH transfer resource in this OFDM symbol except the downlink reference signal for following the tracks of and/or other RE except the RE that the downlink reference signal that demodulates is corresponding on the antenna port at its transmission place.It is preferred that for the OFDM symbol of the integral multiple that available RE number is P in above-mentioned OFDM symbol, PBCH can be mapped on all available RE on this OFDM, namely do not vacate the available RE of part or determine that the available RE number vacated is 0.
Preferably, the above-mentioned available RE of the part method not carrying out PBCH resource mapping of vacating relatively is applicable for use with the second, the third, 4th kind, 5th kind, when 6th kind or the 7th kind of method receive PBCH, namely terminal is removed for the downlink reference signal followed the tracks of at this RE corresponding on the antenna port at the downlink reference signal transmission place followed the tracks of in PBCH transfer resource, and/or for other RE outside the RE that this is corresponding on the antenna port at the downlink reference signal transmission place demodulated of the downlink reference signal that demodulates, when receiving PBCH, or, terminal removes CRS RE corresponding on antenna port 0 in PBCH transfer resource, and/or on other RE that DRS is outside this DRS transmits RE corresponding on K the antenna port at place, when receiving PBCH.
Accordingly, adopting fifth method, namely terminal is in PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS, when receiving PBCH, PBCH coded-bit of carrying under conventional CP is 48* [46-A] bit, under extension CP, the coded-bit of carrying is 48* [44-A] bit, and wherein, A is the number of the RE vacated；Or,
Adopting the 6th kind of method, namely terminal in PBCH transfer resource except DRS this DRS transmit place K antenna port on correspondence RE except other RE on, when receiving PBCH, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that this DRS transmits place for DRS in PBCH transfer resource；Or,
Adopting the 7th kind of method, namely terminal in PBCH transfer resource except DRS transmits RE and CRS corresponding on K the antenna port at place on antenna port 0 on other RE except the RE of correspondence at this DRS, when receiving PBCH, PBCH coded-bit of carrying under conventional CP is 48* [46-B-A] bit, under extension CP, the coded-bit of carrying is 48* [44-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that this DRS transmits place for DRS in PBCH transfer resource.
The value of above-mentioned K is 1 or 2 or 4, and as described K=1, it is antenna port 5 or antenna port 7 or antenna port 8 that DRS transmits K the antenna port at place；When K is more than 1, it is that antenna port 7 arrives antenna port K+6 that DRS transmits K the antenna port at place.
When being used for demodulating the downlink reference signal of PBCH and being DRS, in step 60, terminal receives PBCH, time, the CRC of PBCH not being unscrambled, it is the antenna port number made an appointment that the DRS for demodulating PBCH transmits the antenna port number at place；Or,
Terminal transmits the antenna port number at place and the corresponding relation of scramble sequence according to the DRS for demodulating PBCH set, determine the currently transmitted scramble sequence corresponding for the DRS the demodulating PBCH antenna port number used, and using this scramble sequence that the CRC of PBCH is unscrambled, scramble sequence represents that the DRS for demodulating PBCH transmits the antenna port number at place.
Downlink reference signal for following the tracks of can also include: one or more combinations in PRS, CSI-RS.
As another kind of situation, as the CRS that the downlink reference signal being used for demodulating described PBCH is for demodulating, in step 60, terminal receives PBCH, specifically can adopt any one in the following two kinds method:
First, in PBCH transfer resource on other RE except RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 for CRS, receive PBCH；
Second, except on DRS other RE except DRS transmits RE and CRS corresponding on the antenna port at place RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 in PBCH transfer resource, receive PBCH.
When adopting above-mentioned second method, namely terminal in PBCH transfer resource except DRS other RE except this DRS transmits RE and CRS corresponding on the antenna port at place RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3, when receiving PBCH, PBCH coded-bit of carrying under conventional CP is 48* [40-B] bit, under extension CP, the coded-bit of carrying is 48* [36-B] bit, wherein, B is the number of RE corresponding on the antenna port that this DRS transmits place for DRS in PBCH transfer resource.
Terminal receives the CRS for demodulating PBCH, and concrete grammar can be such that
The CRS received in subframe for demodulating PBCH is transmitted at PBCH, or transmit PBCH in subframe at PBCH and transmit the CRS received on PRB corresponding to RE for demodulating PBCH, or in PBCH transmits the time slot at the PBCH transmission place in subframe, receive the CRS for demodulating PBCH, or PBCH transmits the CRS received in PRB corresponding to RE for demodulating PBCH in PBCH transmits the time slot of the transmission PBCH in subframe, or transmit the CRS received in the OFDM symbol transmit PBCH for demodulating PBCH in subframe at PBCH, or transmit in PRB corresponding for PBCH transmission RE in subframe at PBCH in the OFDM symbol transmit PBCH, receive the CRS for demodulating PBCH.
Embodiment one:
Step one: base station is transmitted in subframe at PBCH, the antenna port at place on corresponding RE is transmitted at this for the downlink reference signal followed the tracks of for the downlink reference signal followed the tracks of based on what PBCH transfer resource comprised, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at this for the downlink reference signal demodulated, PBCH is carried out resource mapping；PBCH is sent according to resource mapping result；And,
Base station sends the downlink reference signal for demodulating PBCH, is DRS for demodulating the downlink reference signal of PBCH；
Step 2: terminal transmits the antenna port at place on corresponding RE at this for the downlink reference signal followed the tracks of for the downlink reference signal followed the tracks of based on what comprise in PBCH transfer resource, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at this for the downlink reference signal demodulated, receive PBCH；And,
Terminal receives the downlink reference signal for demodulating PBCH, according to this downlink reference signal, PHCH is demodulated.It is DRS for demodulating the downlink reference signal of PBCH.
Wherein, at least include the CRS for following the tracks of for the downlink reference signal followed the tracks of, at least include DRS for the downlink reference signal demodulated.
Embodiment two:
Step one: base station is transmitted in subframe at PBCH, the antenna port at place on corresponding RE is transmitted at this for the downlink reference signal followed the tracks of for the downlink reference signal followed the tracks of based on what PBCH transfer resource comprised, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at this for the downlink reference signal demodulated, PBCH is carried out resource mapping；PBCH is sent according to resource mapping result；And,
Base station sends the downlink reference signal for demodulating PBCH, is CRS for demodulating the downlink reference signal of PBCH；
Step 2: terminal transmits the antenna port at place on corresponding RE at this for the downlink reference signal followed the tracks of for the downlink reference signal followed the tracks of based on what comprise in PBCH transfer resource, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at this for the downlink reference signal demodulated, receive PBCH；And,
Terminal receives the downlink reference signal for demodulating PBCH, according to this downlink reference signal, PHCH is demodulated.It is CRS for demodulating the downlink reference signal of PBCH.
Wherein, at least include the CRS for following the tracks of for the downlink reference signal followed the tracks of, at least include DRS for the downlink reference signal demodulated.
Referring to Fig. 9, the embodiment of the present invention also provides for a kind of base station, and this base station includes:
Resource mapping unit 90, for transmitting in subframe at PBCH, Resource Unit RE corresponding on the antenna port at place is transmitted for the downlink reference signal followed the tracks of at the described downlink reference signal for following the tracks of based on what PBCH transfer resource comprised, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at the described downlink reference signal for demodulating, described PBCH is carried out resource mapping；Wherein, the described downlink reference signal for following the tracks of at least includes the community own reference signal CRS for following the tracks of, and the described downlink reference signal for demodulating at least includes downlink user DRS (Dedicated Reference Signal) DRS；
Transmitting element 91, for sending described PBCH according to resource mapping result.
Further, described transmitting element 91 is additionally operable to:
Sending the downlink reference signal for demodulating PBCH, the described downlink reference signal for demodulating PBCH is DRS or the CRS for demodulating.
Further, when the described downlink reference signal for demodulating PBCH is DRS, described resource mapping unit 90 is used for:
Described PBCH is mapped on the whole RE in described PBCH transfer resource；Or,
Described PBCH is mapped in described PBCH transfer resource except the downlink reference signal for following the tracks of is at described other RE on the antenna port at the downlink reference signal transmission place followed the tracks of except the RE of correspondence；Or,
Described PBCH is mapped in described PBCH transfer resource except the downlink reference signal for demodulating is at described other RE on the antenna port at the downlink reference signal transmission place demodulated except the RE of correspondence；Or,
Described PBCH is mapped in described PBCH transfer resource except the downlink reference signal for demodulating is at described corresponding RE and for other RE except described RE corresponding on the antenna port at the downlink reference signal transmission place followed the tracks of of the downlink reference signal followed the tracks of on the antenna port at the downlink reference signal transmission place demodulated；Or,
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for CRS；Or,
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on K the antenna port that described DRS transmits place for DRS；Or,
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for RE and CRS corresponding on K the antenna port that described DRS transmits place for DRS.
Further, when PBCH is mapped on the whole RE in described PBCH transfer resource by described resource mapping unit 90, PBCH coded-bit of carrying under conventional cyclic prefix CP and extension CP is 2304 bits；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for CRS by described resource mapping unit 90, PBCH coded-bit of carrying under conventional CP is 2208 bits, and under extension CP, the coded-bit of carrying is 2112 bits；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on K the antenna port that described DRS transmits place for DRS by described resource mapping unit 90, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B] bit, wherein, B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for RE and CRS corresponding on K the antenna port that described DRS transmits place for DRS by described resource mapping unit 90, PBCH coded-bit of carrying under conventional CP is 48* [46-B] bit, under extension CP, the coded-bit of carrying is 48* [44-B] bit, wherein, B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource.
Further, when described transmitting element sends described PBCH according to resource mapping result, particularly at described resource mapping unit 90, PBCH is mapped on the whole RE in described PBCH transfer resource, or except other RE except described RE corresponding on the antenna port at the downlink reference signal transmission place demodulated of the downlink reference signal for demodulating in described PBCH transfer resource, or in described PBCH transfer resource except DRS on K the antenna port that described DRS transmits place on other RE except the RE of correspondence time:
The subframe that described transmitting element 91 sends the downlink reference signal for following the tracks of is different from the subframe sending described PBCH, and/or, Physical Resource Block PRB and the PRB sending described PBCH that described transmitting element 91 sends the downlink reference signal for following the tracks of are different；Or,
The subframe that described transmitting element 91 sends the CRS for following the tracks of is different from the subframe sending described PBCH, and/or, PRB and the PRB sending described PBCH that described transmitting element 91 sends the CRS for following the tracks of are different.
Further, when described transmitting element sends described PBCH according to resource mapping result, particularly at described resource mapping unit 90, described PBCH is mapped on the whole RE in described PBCH transfer resource, or except other RE except described RE corresponding on the antenna port at the downlink reference signal transmission place followed the tracks of of the downlink reference signal for following the tracks of in described PBCH transfer resource, or in described PBCH transfer resource except CRS on antenna port 0 on other RE except the RE of correspondence time:
Transmit in subframe and/or time slot at PBCH, the orthogonal frequency division multiplex OFDM symbol that described PBCH transmits place is different from the OFDM symbol that DRS transmits place.
Further, when described transmitting element 91 adopts P antenna port to launch PBCH described in diversity transmission:
Described resource mapping unit 90 comprises the OFDM symbol of the described RE corresponding on the antenna port at its transmission place for the downlink reference signal followed the tracks of and/or the downlink reference signal for demodulating in described PBCH transfer resource, vacate the available RE of part and do not carry out PBCH resource mapping, so that for transmitting the integral multiple that number is P of the RE of PBCH in described OFDM symbol；Wherein, P=2 or 4, described available RE is except the described downlink reference signal for following the tracks of and/or other RE except the RE that the downlink reference signal that demodulates is corresponding on the antenna port at its transmission place in OFDM symbol described in PBCH transfer resource.
Preferably, the above-mentioned method vacating the available RE of part is removed for the downlink reference signal followed the tracks of at described RE corresponding on the antenna port at the downlink reference signal transmission place followed the tracks of suitable in when described PBCH is mapped to described PBCH transfer resource by described resource mapping unit 90, and/or time on other RE outside described RE corresponding on the antenna port at the downlink reference signal transmission place demodulated of the downlink reference signal that demodulates, or, described PBCH is mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for CRS at described resource mapping unit, and/or DRS is when described DRS transmits on other RE outside RE corresponding on K the antenna port at place.
Further, time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for CRS by described resource mapping unit 90, PBCH coded-bit of carrying under conventional CP is 48* [46-A] bit, under extension CP, the coded-bit of carrying is 48* [44-A] bit, wherein, A is the number of the RE vacated；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on K the antenna port that described DRS transmits place for DRS by described resource mapping unit 90, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for RE and CRS corresponding on K the antenna port that described DRS transmits place for DRS by described resource mapping unit 90, PBCH coded-bit of carrying under conventional CP is 48* [46-B-A] bit, under extension CP, the coded-bit of carrying is 48* [44-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource.
Further, the value of described K is 1 or 2 or 4, and as described K=1, it is antenna port 5 or antenna port 7 or antenna port 8 that described DRS transmits K the antenna port at place；Or, when described K is more than 1, it is that antenna port 7 arrives antenna port K+6 that described DRS transmits K the antenna port at place.
Further, when the described downlink reference signal for demodulating PBCH is DRS, described transmitting element 91 is additionally operable to:
The cyclic redundancy check (CRC) of described PBCH does not carry out scrambling, and the antenna port number that the described DRS for demodulating PBCH transmits place is the antenna port number made an appointment；Or,
The CRC of described PBCH is carried out scrambling by the corresponding relation according to the DRS for demodulating PBCH the set antenna port number and scramble sequence transmitting place, and described scramble sequence represents that the described DRS for demodulating PBCH transmits the antenna port number at place.
Further, the described downlink reference signal for following the tracks of also includes: one or more combinations in location reference signals PRS, channel state information reference signals CSI-RS.
Further, as the CRS that the described downlink reference signal for demodulating described PBCH is for demodulating, described resource mapping unit 90 is used for:
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 for CRS；Or,
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 for RE and CRS corresponding on the antenna port that described DRS transmits place for DRS.
Further, when PBCH is mapped in described PBCH transfer resource except DRS other RE except described DRS transmits RE and CRS corresponding on the antenna port at place RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 by described resource mapping unit 90, PBCH coded-bit of carrying under conventional CP is 48* [40-B] bit, under extension CP, the coded-bit of carrying is 48* [36-B] bit, wherein, B is the number of RE corresponding on the antenna port that described DRS transmits place for DRS in described PBCH transfer resource.
Further, described transmitting element 91 is used for:
The CRS sent in subframe for demodulating PBCH is transmitted at described PBCH, or transmit PBCH in subframe at described PBCH and transmit the CRS sent on PRB corresponding to RE for demodulating PBCH, or in described PBCH transmits the time slot at the PBCH transmission place in subframe, send the CRS for demodulating PBCH, or PBCH transmits the CRS sent in PRB corresponding to RE for demodulating PBCH in described PBCH transmits the time slot of the transmission PBCH in subframe, or transmit the CRS sent in the OFDM symbol transmit PBCH for demodulating PBCH in subframe at described PBCH, or transmit in PRB corresponding for PBCH transmission RE in subframe at described PBCH in the OFDM symbol transmit PBCH, send the CRS for demodulating PBCH.
Referring to Figure 10, the embodiment of the present invention provides a kind of terminal, and this terminal includes:
Receive unit 101, for transmitting the antenna port at place on corresponding Resource Unit RE for the downlink reference signal followed the tracks of at the described downlink reference signal for following the tracks of based on what PBCH transfer resource comprised, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at the described downlink reference signal for demodulating, receive PBCH；Wherein, the described downlink reference signal for following the tracks of at least includes the community own reference signal CRS for following the tracks of, and the described downlink reference signal for demodulating at least includes downlink user DRS (Dedicated Reference Signal) DRS；
Acquiring unit 102, for according to the PBCH received, obtaining carrier information.
Further, described reception unit 101 is additionally operable to:
Receiving the downlink reference signal for demodulating PBCH, the described downlink reference signal for demodulating PBCH is DRS or the CRS for demodulating.
Further, when the described downlink reference signal for demodulating PBCH is DRS, described reception unit 101 is used for:
On whole RE in described PBCH transfer resource, receive described PBCH；Or,
Except the downlink reference signal for following the tracks of is at described other RE on the antenna port at the downlink reference signal transmission place followed the tracks of except the RE of correspondence in described PBCH transfer resource, receive described PBCH；Or,
Except the downlink reference signal for demodulating is at described other RE on the antenna port at the downlink reference signal transmission place demodulated except the RE of correspondence in described PBCH transfer resource, receive described PBCH；Or,
Except the downlink reference signal for demodulating is at described corresponding RE and for other RE except described RE corresponding on the antenna port at the downlink reference signal transmission place followed the tracks of of the downlink reference signal followed the tracks of on the antenna port at the downlink reference signal transmission place demodulated in described PBCH transfer resource, receive described PBCH；Or,
In described PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS, receive described PBCH；Or,
In described PBCH transfer resource except DRS described DRS transmit place K antenna port on correspondence RE except other RE on, receive described PBCH；Or,
Described PBCH transfer resource on other RE except the RE of correspondence, receives described PBCH except DRS transmits RE and CRS corresponding on K the antenna port at place at described DRS on antenna port 0.
Further, on the described reception unit 101 whole RE in described PBCH transfer resource, when receiving described PBCH, PBCH coded-bit of carrying under conventional cyclic prefix CP and extension CP is 2304 bits；Or,
Described reception unit 101 in described PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS time, receive described PBCH, PBCH coded-bit of carrying under conventional CP is 2208 bits, and under extension CP, the coded-bit of carrying is 2112 bits；Or,
Described reception unit 101 in described PBCH transfer resource except DRS described DRS transmit place K antenna port on correspondence RE except other RE on, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B] bit, wherein, B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource；Or,
Described reception unit 101 in described PBCH transfer resource except DRS transmits RE and CRS corresponding on K the antenna port at place on antenna port 0 on other RE except the RE of correspondence at described DRS, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP is 48* [46-B] bit, under extension CP, the coded-bit of carrying is 48* [44-B] bit, wherein, B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource.
Further, when described reception unit 101 receives described PBCH, particularly on the whole RE in described PBCH transfer resource, or except other RE except described RE corresponding on the antenna port at the downlink reference signal transmission place demodulated of the downlink reference signal for demodulating in described PBCH transfer resource, or except DRS is on K the antenna port that described DRS transmits place on other RE except the RE of correspondence in described PBCH transfer resource, when receiving described PBCH:
The subframe that described reception unit 101 receives the downlink reference signal for following the tracks of is different from the subframe receiving described PBCH, and/or, it is different from receiving the described PBCH PRB used that described reception unit receives the Physical Resource Block PRB of the downlink reference signal for following the tracks of；Or,
The subframe that described reception unit 101 receives the CRS for following the tracks of is different from the subframe receiving described PBCH, and/or, PRB and the PRB receiving described PBCH that described reception unit receives the CRS for following the tracks of are different.
Further, when described reception unit 101 receives described PBCH, particularly on the whole RE in described PBCH transfer resource, or except other RE except described RE corresponding on the antenna port at the downlink reference signal transmission place followed the tracks of of the downlink reference signal for following the tracks of in described PBCH transfer resource, or in described PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS, when receiving described PBCH:
Transmit in subframe and/or time slot at PBCH, the orthogonal frequency division multiplex OFDM symbol that described PBCH transmits place is different from the OFDM symbol that DRS transmits place.
Further, when described reception unit 101 adopts P antenna port to launch PBCH described in diversity reception:
Described reception unit 101 comprises the OFDM symbol of the described RE corresponding on the antenna port at its transmission place for the downlink reference signal followed the tracks of and/or the downlink reference signal for demodulating in described PBCH transfer resource, vacate the available RE of part and do not receive PBCH, so that described reception unit is when adopting P antenna port to launch PBCH described in diversity reception, for transmitting the integral multiple that number is P of the RE of PBCH in described OFDM symbol；Wherein, P=2 or 4, described available RE is except the described downlink reference signal for following the tracks of and/or other RE except the RE that the downlink reference signal that demodulates is corresponding on the antenna port at its transmission place in OFDM symbol described in PBCH transfer resource.
Preferably, the above-mentioned method vacating the available RE of part is removed for the downlink reference signal followed the tracks of at described RE corresponding on the antenna port at the downlink reference signal transmission place followed the tracks of suitable in when described reception unit 101 described PBCH transfer resource, and/or for other RE outside described RE corresponding on the antenna port at the downlink reference signal transmission place demodulated of the downlink reference signal that demodulates, when receiving described PBCH, or, described terminal removes CRS RE corresponding on antenna port 0 in described PBCH transfer resource, and/or on other RE that DRS is outside described DRS transmits RE corresponding on K the antenna port at place, when receiving described PBCH.
Further, described reception unit 101 is in described PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP is 48* [46-A] bit, under extension CP, the coded-bit of carrying is 48* [44-A] bit, wherein, A is the number of the RE vacated；Or,
Described reception unit 101 in described PBCH transfer resource except DRS described DRS transmit place K antenna port on correspondence RE except other RE on, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource；Or,
Described reception unit 101 in described PBCH transfer resource except DRS transmits RE and CRS corresponding on K the antenna port at place on antenna port 0 on other RE except the RE of correspondence at described DRS, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP is 48* [46-B-A] bit, under extension CP, the coded-bit of carrying is 48* [44-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource.
Further, the value of described K is 1 or 2 or 4, and as described K=1, it is antenna port 5 or antenna port 7 or antenna port 8 that described DRS transmits K the antenna port at place；Or, when described K is more than 1, it is that antenna port 7 arrives antenna port K+6 that described DRS transmits K the antenna port at place.
Further, when the described downlink reference signal for demodulating PBCH is DRS, described reception unit 101 is used for:
The cyclic redundancy check (CRC) of described PBCH not being unscrambled, the antenna port number that the described DRS for demodulating PBCH transmits place is the antenna port number made an appointment；Or,
The CRC of described PBCH is unscrambled by the corresponding relation according to the DRS for demodulating PBCH the set antenna port number and scramble sequence transmitting place, and described scramble sequence represents that the described DRS for demodulating PBCH transmits the antenna port number at place.
Further, the described downlink reference signal for following the tracks of also includes: one or more combinations in location reference signals PRS, channel state information reference signals CSI-RS.
Further, as the CRS that the described downlink reference signal for demodulating described PBCH is for demodulating, described reception unit 101 is used for:
In described PBCH transfer resource on other RE except RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 for CRS, receive described PBCH；Or,
Except on DRS other RE except described DRS transmits RE and CRS corresponding on the antenna port at place RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 in described PBCH transfer resource, receive described PBCH.
Further, described reception unit 101 in described PBCH transfer resource except DRS other RE except described DRS transmits RE and CRS corresponding on the antenna port at place RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP is 48* [40-B] bit, under extension CP, the coded-bit of carrying is 48* [36-B] bit, wherein, B is the number of RE corresponding on the antenna port that described DRS transmits place for DRS in described PBCH transfer resource.
Further, described reception unit 101 is used for:
The CRS received in subframe for demodulating PBCH is transmitted at described PBCH, or transmit PBCH in subframe at described PBCH and transmit the CRS received on PRB corresponding to RE for demodulating PBCH, or in described PBCH transmits the time slot at the PBCH transmission place in subframe, receive the CRS for demodulating PBCH, or PBCH transmits the CRS received in PRB corresponding to RE for demodulating PBCH in described PBCH transmits the time slot of the transmission PBCH in subframe, or transmit the CRS received in the OFDM symbol transmit PBCH for demodulating PBCH in subframe at described PBCH, or transmit in PRB corresponding for PBCH transmission RE in subframe at described PBCH in the OFDM symbol transmit PBCH, receive the CRS for demodulating PBCH.
To sum up, the beneficial effect comprise that
In the scheme that the embodiment of the present invention provides, base station is transmitted in subframe at PBCH, the antenna port at place on corresponding RE is transmitted at this for the downlink reference signal followed the tracks of for the downlink reference signal followed the tracks of based on what PBCH transfer resource comprised, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at this for the downlink reference signal demodulated, PBCH is carried out resource mapping, and sends PBCH according to resource mapping result.Visible, this programme when PBCH being carried out resource and mapping according on new carrier type for the downlink reference signal followed the tracks of and/or RE corresponding on the downlink reference signal antenna port demodulated, PBCH carries out more rational resource map, make the PBCH transmission that the program can apply on NCT carrier wave, to improve resource utilization and PBCH transmission performance.The present invention is that flow chart and/or block diagram with reference to method according to embodiments of the present invention, equipment (system) and computer program describe.It should be understood that can by the combination of the flow process in each flow process in computer program instructions flowchart and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can be provided to produce a machine to the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device so that the instruction performed by the processor of computer or other programmable data processing device is produced for realizing the device of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide in the computer-readable memory that computer or other programmable data processing device work in a specific way, the instruction making to be stored in this computer-readable memory produces to include the manufacture of command device, and this command device realizes the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices provides for realizing the step of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art are once know basic creative concept, then these embodiments can be made other change and amendment.So, claims are intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, the present invention can be carried out various change and modification without deviating from the spirit and scope of the present invention by those skilled in the art.So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (44)

1. the transmission method of a Physical Broadcast Channel PBCH, it is characterised in that the method includes:
Base station is transmitted in subframe at PBCH, Resource Unit RE corresponding on the antenna port at place is transmitted for the downlink reference signal followed the tracks of at the described downlink reference signal for following the tracks of based on what PBCH transfer resource comprised, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at the described downlink reference signal for demodulating, described PBCH is carried out resource mapping；Wherein, the described downlink reference signal for following the tracks of at least includes the community own reference signal CRS for following the tracks of, and the described downlink reference signal for demodulating at least includes downlink user DRS (Dedicated Reference Signal) DRS；
Described base station sends described PBCH according to resource mapping result；
The method also includes, and described base station sends the downlink reference signal for demodulating PBCH, and the described downlink reference signal for demodulating PBCH is DRS or the CRS for demodulating；
When the described downlink reference signal for demodulating PBCH is DRS, described PBCH is carried out resource mapping by described base station, specifically includes:
Described PBCH is mapped on the whole RE in described PBCH transfer resource；Or,
Described PBCH is mapped in described PBCH transfer resource except the downlink reference signal for following the tracks of is at described other RE on the antenna port at the downlink reference signal transmission place followed the tracks of except the RE of correspondence；Or,
Described PBCH is mapped in described PBCH transfer resource except the downlink reference signal for demodulating is at described other RE on the antenna port at the downlink reference signal transmission place demodulated except the RE of correspondence；Or,
Described PBCH is mapped in described PBCH transfer resource except the downlink reference signal for demodulating is at described corresponding RE and for other RE except described RE corresponding on the antenna port at the downlink reference signal transmission place followed the tracks of of the downlink reference signal followed the tracks of on the antenna port at the downlink reference signal transmission place demodulated；Or,
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for CRS；Or,
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on K the antenna port that described DRS transmits place for DRS；Or,
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for RE and CRS corresponding on K the antenna port that described DRS transmits place for DRS；
As the CRS that the described downlink reference signal for demodulating described PBCH is for demodulating, described PBCH is carried out resource mapping by described base station, specifically includes:
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 for CRS；Or,
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 for RE and CRS corresponding on the antenna port that described DRS transmits place for DRS.
2. the method for claim 1, it is characterised in that when the described downlink reference signal for demodulating described PBCH is DRS:
When being mapped to by PBCH on the whole RE in described PBCH transfer resource in base station, PBCH coded-bit of carrying under conventional cyclic prefix CP and extension CP is 2304 bits；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for CRS by base station, PBCH coded-bit of carrying under conventional CP is 2208 bits, and under extension CP, the coded-bit of carrying is 2112 bits；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on K the antenna port that described DRS transmits place for DRS by base station, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B] bit, wherein, B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for RE and CRS corresponding on K the antenna port that described DRS transmits place for DRS by base station, PBCH coded-bit of carrying under conventional CP is 48* [46-B] bit, under extension CP, the coded-bit of carrying is 48* [44-B] bit, wherein, B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource.
3. the method for claim 1, it is characterised in that when the described downlink reference signal for demodulating described PBCH is DRS, described base station sends described PBCH according to resource mapping result, farther includes:
The subframe that described base station sends the downlink reference signal for following the tracks of is different from the subframe sending described PBCH, and/or, Physical Resource Block PRB and the PRB sending described PBCH that described base station sends the downlink reference signal for following the tracks of are different；Or,
The subframe that described base station sends the CRS for following the tracks of is different from the subframe sending described PBCH, and/or, PRB and the PRB sending described PBCH that described base station sends the CRS for following the tracks of are different.
4. the method for claim 1, it is characterised in that when the described downlink reference signal for demodulating described PBCH is DRS, described base station sends described PBCH according to resource mapping result, farther includes:
Transmit in subframe and/or time slot at PBCH, the orthogonal frequency division multiplex OFDM symbol that described PBCH transmits place is different from the OFDM symbol that DRS transmits place.
5. the method for claim 1, it is characterized in that, when the described downlink reference signal for demodulating described PBCH is DRS, and when described base station adopts P antenna port to launch PBCH described in diversity transmission, described PBCH is carried out resource mapping by described base station, farther includes:
Described PBCH transfer resource comprises the OFDM symbol of the described RE corresponding on the antenna port at its transmission place for the downlink reference signal followed the tracks of and/or the downlink reference signal for demodulating, vacate the available RE of part and do not carry out PBCH resource mapping, so that for transmitting the integral multiple that number is P of the RE of PBCH in described OFDM symbol；Wherein, P=2 or 4, described available RE is except the described downlink reference signal for following the tracks of and/or other RE except the RE that the downlink reference signal that demodulates is corresponding on the antenna port at its transmission place in OFDM symbol described in PBCH transfer resource.
6. method as claimed in claim 5, it is characterized in that, time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for CRS by base station, PBCH coded-bit of carrying under conventional CP is 48* [46-A] bit, under extension CP, the coded-bit of carrying is 48* [44-A] bit, wherein, A is the number of the RE vacated；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on K the antenna port that described DRS transmits place for DRS by base station, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for RE and CRS corresponding on K the antenna port that described DRS transmits place for DRS by base station, PBCH coded-bit of carrying under conventional CP is 48* [46-B-A] bit, under extension CP, the coded-bit of carrying is 48* [44-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource.
7. such as the method as described in arbitrary in claim 1～6, it is characterized in that, when the described downlink reference signal for demodulating described PBCH is DRS, the value of described K is 1 or 2 or 4, as described K=1, it is antenna port 5 or antenna port 7 or antenna port 8 that described DRS transmits K the antenna port at place；Or, when described K is more than 1, it is that antenna port 7 arrives antenna port K+6 that described DRS transmits K the antenna port at place.
8., such as the method as described in arbitrary in claim 1～6, it is characterised in that when the described downlink reference signal for demodulating PBCH is DRS, described base station sends described PBCH according to resource mapping result, farther includes:
The cyclic redundancy check (CRC) of described PBCH is not carried out scrambling by described base station, and the antenna port number that the described DRS for demodulating PBCH transmits place is the antenna port number made an appointment；Or,
The CRC of described PBCH is carried out scrambling according to the corresponding relation of the DRS for demodulating PBCH the set antenna port number and scramble sequence transmitting place by described base station, and described scramble sequence represents that the described DRS for demodulating PBCH transmits the antenna port number at place.
9. such as the method as described in arbitrary in claim 1～6, it is characterised in that the described downlink reference signal for following the tracks of also includes: one or more combinations in location reference signals PRS, channel state information reference signals CSI-RS.
10. the method for claim 1, it is characterized in that, as the CRS that the described downlink reference signal for demodulating described PBCH is for demodulating, PBCH is mapped in described PBCH transfer resource except RE corresponding on the antenna port that described DRS transmits place for DRS in base station, and CRS is at antenna port 0, antenna port 1, during other RE outside RE corresponding on antenna port 2 and antenna port 3, PBCH coded-bit of carrying under conventional CP is 48* [40-B] bit, under extension CP, the coded-bit of carrying is 48* [36-B] bit, wherein, B is the number of RE corresponding on the antenna port that described DRS transmits place for DRS in described PBCH transfer resource.
11. the method as described in claim 1 or 10, it is characterised in that as the CRS that the described downlink reference signal for demodulating described PBCH is for demodulating, described base station sends the CRS for demodulating PBCH, specifically includes:
The CRS sent in subframe for demodulating PBCH is transmitted at described PBCH, or transmit PBCH in subframe at described PBCH and transmit the CRS sent on PRB corresponding to RE for demodulating PBCH, or in described PBCH transmits the time slot at the PBCH transmission place in subframe, send the CRS for demodulating PBCH, or PBCH transmits the CRS sent in PRB corresponding to RE for demodulating PBCH in described PBCH transmits the time slot of the transmission PBCH in subframe, or transmit the CRS sent in the OFDM symbol transmit PBCH for demodulating PBCH in subframe at described PBCH, or transmit in PRB corresponding for PBCH transmission RE in subframe at described PBCH in the OFDM symbol transmit PBCH, send the CRS for demodulating PBCH.
12. the transmission method of a Physical Broadcast Channel PBCH, it is characterised in that the method includes:
Terminal transmits the antenna port at place on corresponding Resource Unit RE for the downlink reference signal followed the tracks of at the described downlink reference signal for following the tracks of based on what comprise in PBCH transfer resource, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at the described downlink reference signal for demodulating, receive PBCH；
Wherein, the described downlink reference signal for following the tracks of at least includes the community own reference signal CRS for following the tracks of, and the described downlink reference signal for demodulating at least includes downlink user DRS (Dedicated Reference Signal) DRS；
The method also includes, and described terminal receives the downlink reference signal for demodulating PBCH, and the described downlink reference signal for demodulating PBCH is DRS or the CRS for demodulating；
When the described downlink reference signal for demodulating PBCH is DRS, described terminal receives PBCH, specifically includes:
On whole RE in described PBCH transfer resource, receive described PBCH；Or,
Except the downlink reference signal for following the tracks of is at described other RE on the antenna port at the downlink reference signal transmission place followed the tracks of except the RE of correspondence in described PBCH transfer resource, receive described PBCH；Or,
Except the downlink reference signal for demodulating is at described other RE on the antenna port at the downlink reference signal transmission place demodulated except the RE of correspondence in described PBCH transfer resource, receive described PBCH；Or,
Except the downlink reference signal for demodulating is at described corresponding RE and for other RE except described RE corresponding on the antenna port at the downlink reference signal transmission place followed the tracks of of the downlink reference signal followed the tracks of on the antenna port at the downlink reference signal transmission place demodulated in described PBCH transfer resource, receive described PBCH；Or,
In described PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS, receive described PBCH；Or,
In described PBCH transfer resource except DRS described DRS transmit place K antenna port on correspondence RE except other RE on, receive described PBCH；Or,
Described PBCH transfer resource on other RE except the RE of correspondence, receives described PBCH except DRS transmits RE and CRS corresponding on K the antenna port at place at described DRS on antenna port 0；
As the CRS that the described downlink reference signal for demodulating described PBCH is for demodulating, described terminal receives described PBCH, specifically includes:
In described PBCH transfer resource on other RE except RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 for CRS, receive described PBCH；Or,
Except on DRS other RE except described DRS transmits RE and CRS corresponding on the antenna port at place RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 in described PBCH transfer resource, receive described PBCH.
13. method as claimed in claim 12, it is characterised in that when the described downlink reference signal for demodulating described PBCH is DRS:
On the described terminal whole RE in described PBCH transfer resource, when receiving described PBCH, PBCH coded-bit of carrying under conventional cyclic prefix CP and extension CP is 2304 bits；Or,
Described terminal in described PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS time, receiving described PBCH, the PBCH coded-bit of carrying under conventional CP is 2208 bits, and under extension CP, the coded-bit of carrying is 2112 bits；Or,
Described terminal in described PBCH transfer resource except DRS described DRS transmit place K antenna port on correspondence RE except other RE on, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B] bit, wherein, B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource；Or,
Described terminal in described PBCH transfer resource except DRS transmits RE and CRS corresponding on K the antenna port at place on antenna port 0 on other RE except the RE of correspondence at described DRS, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP is 48* [46-B] bit, under extension CP, the coded-bit of carrying is 48* [44-B] bit, wherein, B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource.
14. method as claimed in claim 12, it is characterised in that when the described downlink reference signal for demodulating described PBCH is DRS, when described terminal receives described PBCH, farther include:
The subframe that described terminal receives the downlink reference signal for following the tracks of is different from the subframe receiving described PBCH, and/or, Physical Resource Block PRB and the PRB receiving described PBCH that described terminal receives the downlink reference signal for following the tracks of are different；Or,
The subframe that described terminal receives the CRS for following the tracks of is different from the subframe receiving described PBCH, and/or, PRB and the PRB receiving described PBCH that described terminal receives the CRS for following the tracks of are different.
15. method as claimed in claim 12, it is characterised in that when the described downlink reference signal for demodulating described PBCH is DRS, when described terminal receives described PBCH, farther include:
Transmit in subframe and/or time slot at PBCH, the orthogonal frequency division multiplex OFDM symbol that described PBCH transmits place is different from the OFDM symbol that DRS transmits place.
16. method as claimed in claim 12, it is characterised in that when the described downlink reference signal for demodulating described PBCH is DRS, and when described terminal adopts P antenna port to launch PBCH described in diversity reception, farther include:
Described PBCH transfer resource comprises the OFDM symbol of the described RE corresponding on the antenna port at its transmission place for the downlink reference signal followed the tracks of and/or the downlink reference signal for demodulating, vacate the available RE of part and do not receive PBCH, so that for transmitting the integral multiple that number is P of the RE of PBCH in described OFDM symbol；Wherein, P=2 or 4, described available RE is except the described downlink reference signal for following the tracks of and/or other RE except the RE that the downlink reference signal that demodulates is corresponding on the antenna port at its transmission place in OFDM symbol described in PBCH transfer resource.
17. method as claimed in claim 16, it is characterized in that, described terminal is in described PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP is 48* [46-A] bit, under extension CP, the coded-bit of carrying is 48* [44-A] bit, and wherein, A is the number of the RE vacated；Or,
Described terminal in described PBCH transfer resource except DRS described DRS transmit place K antenna port on correspondence RE except other RE on, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource；Or,
Described terminal in described PBCH transfer resource except DRS transmits RE and CRS corresponding on K the antenna port at place on antenna port 0 on other RE except the RE of correspondence at described DRS, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP is 48* [46-B-A] bit, under extension CP, the coded-bit of carrying is 48* [44-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource.
18. such as the method as described in arbitrary in claim 12～17, it is characterized in that, when the described downlink reference signal for demodulating described PBCH is DRS, the value of described K is 1 or 2 or 4, as described K=1, it is antenna port 5 or antenna port 7 or antenna port 8 that described DRS transmits K the antenna port at place；Or, when described K is more than 1, it is that antenna port 7 arrives antenna port K+6 that described DRS transmits K the antenna port at place.
19. such as the method as described in arbitrary in claim 12～17, it is characterised in that when the described downlink reference signal for demodulating PBCH is DRS, described terminal receives described PBCH, farther includes:
The cyclic redundancy check (CRC) of described PBCH is not unscrambled by described terminal, and the antenna port number that the described DRS for demodulating PBCH transmits place is the antenna port number made an appointment；Or,
The CRC of described PBCH is unscrambled by described terminal according to the corresponding relation of the DRS for demodulating PBCH the set antenna port number and scramble sequence transmitting place, and described scramble sequence represents that the described DRS for demodulating PBCH transmits the antenna port number at place.
20. such as the method as described in arbitrary in claim 12～17, it is characterised in that the described downlink reference signal for following the tracks of also includes: one or more combinations in location reference signals PRS, channel state information reference signals CSI-RS.
21. method as claimed in claim 12, it is characterized in that, as the CRS that the described downlink reference signal for demodulating described PBCH is for demodulating, described terminal removes the RE that DRS is corresponding on the antenna port that described DRS transmits place in described PBCH transfer resource, and CRS is at antenna port 0, antenna port 1, other RE outside RE corresponding on antenna port 2 and antenna port 3, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP is 48* [40-B] bit, under extension CP, the coded-bit of carrying is 48* [36-B] bit, wherein, B is the number of RE corresponding on the antenna port that described DRS transmits place for DRS in described PBCH transfer resource.
22. the method as described in claim 12 or 21, it is characterised in that as the CRS that the described downlink reference signal for demodulating described PBCH is for demodulating, described terminal receives the CRS for demodulating PBCH, specifically includes:
The CRS received in subframe for demodulating PBCH is transmitted at described PBCH, or transmit PBCH in subframe at described PBCH and transmit the CRS received on PRB corresponding to RE for demodulating PBCH, or in described PBCH transmits the time slot at the PBCH transmission place in subframe, receive the CRS for demodulating PBCH, or PBCH transmits the CRS received in PRB corresponding to RE for demodulating PBCH in described PBCH transmits the time slot of the transmission PBCH in subframe, or transmit the CRS received in the OFDM symbol transmit PBCH for demodulating PBCH in subframe at described PBCH, or transmit in PRB corresponding for PBCH transmission RE in subframe at described PBCH in the OFDM symbol transmit PBCH, receive the CRS for demodulating PBCH.
23. a base station, it is characterised in that this base station includes:
Resource mapping unit, for transmitting in subframe at PBCH, Resource Unit RE corresponding on the antenna port at place is transmitted for the downlink reference signal followed the tracks of at the described downlink reference signal for following the tracks of based on what PBCH transfer resource comprised, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at the described downlink reference signal for demodulating, described PBCH is carried out resource mapping；Wherein, the described downlink reference signal for following the tracks of at least includes the community own reference signal CRS for following the tracks of, and the described downlink reference signal for demodulating at least includes downlink user DRS (Dedicated Reference Signal) DRS；
Transmitting element, for sending described PBCH according to resource mapping result；
Described transmitting element is additionally operable to:
Sending the downlink reference signal for demodulating PBCH, the described downlink reference signal for demodulating PBCH is DRS or the CRS for demodulating；
When the described downlink reference signal for demodulating PBCH is DRS, described resource mapping unit specifically for:
Described PBCH is mapped on the whole RE in described PBCH transfer resource；Or,
Described PBCH is mapped in described PBCH transfer resource except the downlink reference signal for following the tracks of is at described other RE on the antenna port at the downlink reference signal transmission place followed the tracks of except the RE of correspondence；Or,
Described PBCH is mapped in described PBCH transfer resource except the downlink reference signal for demodulating is at described other RE on the antenna port at the downlink reference signal transmission place demodulated except the RE of correspondence；Or,
Described PBCH is mapped in described PBCH transfer resource except the downlink reference signal for demodulating is at described corresponding RE and for other RE except described RE corresponding on the antenna port at the downlink reference signal transmission place followed the tracks of of the downlink reference signal followed the tracks of on the antenna port at the downlink reference signal transmission place demodulated；Or,
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for CRS；Or,
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on K the antenna port that described DRS transmits place for DRS；Or,
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for RE and CRS corresponding on K the antenna port that described DRS transmits place for DRS；
As the CRS that the described downlink reference signal for demodulating described PBCH is for demodulating, described resource mapping unit specifically for:
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 for CRS；Or,
On other RE described PBCH being mapped in described PBCH transfer resource except RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 for RE and CRS corresponding on the antenna port that described DRS transmits place for DRS.
24. base station as claimed in claim 23, it is characterised in that when the described downlink reference signal for demodulating described PBCH is DRS:
When PBCH is mapped on the whole RE in described PBCH transfer resource by described resource mapping unit, PBCH coded-bit of carrying under conventional cyclic prefix CP and extension CP is 2304 bits；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for CRS by described resource mapping unit, PBCH coded-bit of carrying under conventional CP is 2208 bits, and under extension CP, the coded-bit of carrying is 2112 bits；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on K the antenna port that described DRS transmits place for DRS by described resource mapping unit, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B] bit, wherein, B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for RE and CRS corresponding on K the antenna port that described DRS transmits place for DRS by described resource mapping unit, PBCH coded-bit of carrying under conventional CP is 48* [46-B] bit, under extension CP, the coded-bit of carrying is 48* [44-B] bit, wherein, B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource.
25. base station as claimed in claim 23, it is characterized in that, when the described downlink reference signal for demodulating described PBCH is DRS, the subframe that described transmitting element sends the downlink reference signal for following the tracks of is different from the subframe sending described PBCH, and/or, Physical Resource Block PRB and the PRB sending described PBCH that described transmitting element sends the downlink reference signal for following the tracks of are different；Or,
The subframe that described transmitting element sends the CRS for following the tracks of is different from the subframe sending described PBCH, and/or, PRB and the PRB sending described PBCH that described transmitting element sends the CRS for following the tracks of are different.
26. base station as claimed in claim 23, it is characterized in that, when the described downlink reference signal for demodulating described PBCH is DRS, transmitting in subframe and/or time slot at PBCH, the orthogonal frequency division multiplex OFDM symbol that described PBCH transmits place is different from the OFDM symbol that DRS transmits place.
27. base station as claimed in claim 23, it is characterized in that, when the described downlink reference signal for demodulating described PBCH is DRS, and when described transmitting element adopts P antenna port to launch PBCH described in diversity transmission, described resource mapping unit is further used for:
Described PBCH transfer resource comprises the OFDM symbol of the described RE corresponding on the antenna port at its transmission place for the downlink reference signal followed the tracks of and/or the downlink reference signal for demodulating, vacate the available RE of part and do not carry out PBCH resource mapping, so that for transmitting the integral multiple that number is P of the RE of PBCH in described OFDM symbol；Wherein, P=2 or 4, described available RE is except the described downlink reference signal for following the tracks of and/or other RE except the RE that the downlink reference signal that demodulates is corresponding on the antenna port at its transmission place in OFDM symbol described in PBCH transfer resource.
28. base station as claimed in claim 27, it is characterized in that, time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for CRS by described resource mapping unit, PBCH coded-bit of carrying under conventional CP is 48* [46-A] bit, under extension CP, the coded-bit of carrying is 48* [44-A] bit, wherein, A is the number of the RE vacated；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on K the antenna port that described DRS transmits place for DRS by described resource mapping unit, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource；Or,
Time on other RE that PBCH is mapped in described PBCH transfer resource except RE corresponding on antenna port 0 for RE and CRS corresponding on K the antenna port that described DRS transmits place for DRS by described resource mapping unit, PBCH coded-bit of carrying under conventional CP is 48* [46-B-A] bit, under extension CP, the coded-bit of carrying is 48* [44-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource.
29. such as the base station as described in arbitrary in claim 23～28, it is characterized in that, when the described downlink reference signal for demodulating described PBCH is DRS, the value of described K is 1 or 2 or 4, as described K=1, it is antenna port 5 or antenna port 7 or antenna port 8 that described DRS transmits K the antenna port at place；Or, when described K is more than 1, it is that antenna port 7 arrives antenna port K+6 that described DRS transmits K the antenna port at place.
30. such as the base station as described in arbitrary in claim 23～28, it is characterised in that when the described downlink reference signal for demodulating PBCH is DRS, described transmitting element is additionally operable to:
The cyclic redundancy check (CRC) of described PBCH does not carry out scrambling, and the antenna port number that the described DRS for demodulating PBCH transmits place is the antenna port number made an appointment；Or,
The CRC of described PBCH is carried out scrambling by the corresponding relation according to the DRS for demodulating PBCH the set antenna port number and scramble sequence transmitting place, and described scramble sequence represents that the described DRS for demodulating PBCH transmits the antenna port number at place.
31. such as the base station as described in arbitrary in claim 23～28, it is characterised in that the described downlink reference signal for following the tracks of also includes: one or more combinations in location reference signals PRS, channel state information reference signals CSI-RS.
32. base station as claimed in claim 23, it is characterized in that, as the CRS that the described downlink reference signal for demodulating described PBCH is for demodulating, PBCH is mapped in described PBCH transfer resource except RE corresponding on the antenna port that described DRS transmits place for DRS at described resource mapping unit, and CRS is at antenna port 0, antenna port 1, during other RE outside RE corresponding on antenna port 2 and antenna port 3, PBCH coded-bit of carrying under conventional CP is 48* [40-B] bit, under extension CP, the coded-bit of carrying is 48* [36-B] bit, wherein, B is the number of RE corresponding on the antenna port that described DRS transmits place for DRS in described PBCH transfer resource.
33. the base station as described in claim 23 or 32, it is characterised in that as the CRS that the described downlink reference signal for demodulating described PBCH is for demodulating, described transmitting element is used for:
The CRS sent in subframe for demodulating PBCH is transmitted at described PBCH, or transmit PBCH in subframe at described PBCH and transmit the CRS sent on PRB corresponding to RE for demodulating PBCH, or in described PBCH transmits the time slot at the PBCH transmission place in subframe, send the CRS for demodulating PBCH, or PBCH transmits the CRS sent in PRB corresponding to RE for demodulating PBCH in described PBCH transmits the time slot of the transmission PBCH in subframe, or transmit the CRS sent in the OFDM symbol transmit PBCH for demodulating PBCH in subframe at described PBCH, or transmit in PRB corresponding for PBCH transmission RE in subframe at described PBCH in the OFDM symbol transmit PBCH, send the CRS for demodulating PBCH.
34. a terminal, it is characterised in that this terminal includes:
Receive unit, for transmitting the antenna port at place on corresponding Resource Unit RE for the downlink reference signal followed the tracks of at the described downlink reference signal for following the tracks of based on what PBCH transfer resource comprised, and/or the downlink reference signal for demodulating transmits RE corresponding on the antenna port at place at the described downlink reference signal for demodulating, receive PBCH；Wherein, the described downlink reference signal for following the tracks of at least includes the community own reference signal CRS for following the tracks of, and the described downlink reference signal for demodulating at least includes downlink user DRS (Dedicated Reference Signal) DRS；
Acquiring unit, for according to the PBCH received, obtaining carrier information；
Described reception unit is additionally operable to:
Receiving the downlink reference signal for demodulating PBCH, the described downlink reference signal for demodulating PBCH is DRS or the CRS for demodulating；
When the described downlink reference signal for demodulating PBCH is DRS, described reception unit is used for:
On whole RE in described PBCH transfer resource, receive described PBCH；Or,
Except the downlink reference signal for following the tracks of is at described other RE on the antenna port at the downlink reference signal transmission place followed the tracks of except the RE of correspondence in described PBCH transfer resource, receive described PBCH；Or,
Except the downlink reference signal for demodulating is at described other RE on the antenna port at the downlink reference signal transmission place demodulated except the RE of correspondence in described PBCH transfer resource, receive described PBCH；Or,
Except the downlink reference signal for demodulating is at described corresponding RE and for other RE except described RE corresponding on the antenna port at the downlink reference signal transmission place followed the tracks of of the downlink reference signal followed the tracks of on the antenna port at the downlink reference signal transmission place demodulated in described PBCH transfer resource, receive described PBCH；Or,
In described PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS, receive described PBCH；Or,
In described PBCH transfer resource except DRS described DRS transmit place K antenna port on correspondence RE except other RE on, receive described PBCH；Or,
Described PBCH transfer resource on other RE except the RE of correspondence, receives described PBCH except DRS transmits RE and CRS corresponding on K the antenna port at place at described DRS on antenna port 0；
As the CRS that the described downlink reference signal for demodulating described PBCH is for demodulating, described reception unit is used for:
In described PBCH transfer resource on other RE except RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 for CRS, receive described PBCH；Or,
Except on DRS other RE except described DRS transmits RE and CRS corresponding on the antenna port at place RE corresponding on antenna port 0, antenna port 1, antenna port 2 and antenna port 3 in described PBCH transfer resource, receive described PBCH.
35. terminal as claimed in claim 34, it is characterized in that, when the described downlink reference signal for demodulating described PBCH is DRS, on the described reception unit whole RE in described PBCH transfer resource, when receiving described PBCH, PBCH coded-bit of carrying under conventional cyclic prefix CP and extension CP is 2304 bits；Or,
Described reception unit in described PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS time, receive described PBCH, PBCH coded-bit of carrying under conventional CP is 2208 bits, and under extension CP, the coded-bit of carrying is 2112 bits；Or,
Described reception unit in described PBCH transfer resource except DRS described DRS transmit place K antenna port on correspondence RE except other RE on, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B] bit, wherein, B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource；Or,
Described reception unit in described PBCH transfer resource except DRS transmits RE and CRS corresponding on K the antenna port at place on antenna port 0 on other RE except the RE of correspondence at described DRS, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP is 48* [46-B] bit, under extension CP, the coded-bit of carrying is 48* [44-B] bit, wherein, B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource.
36. terminal as claimed in claim 34, it is characterized in that, when the described downlink reference signal for demodulating described PBCH is DRS, the subframe that described reception unit receives the downlink reference signal for following the tracks of is different from the subframe receiving described PBCH, and/or, Physical Resource Block PRB and the PRB receiving described PBCH that described reception unit receives the downlink reference signal for following the tracks of are different；Or,
The subframe that described reception unit receives the CRS for following the tracks of is different from the subframe receiving described PBCH, and/or, PRB and the PRB receiving described PBCH that described reception unit receives the CRS for following the tracks of are different.
37. terminal as claimed in claim 34, it is characterized in that, when the described downlink reference signal for demodulating described PBCH is DRS, transmitting in subframe and/or time slot at PBCH, the orthogonal frequency division multiplex OFDM symbol that described PBCH transmits place is different from the OFDM symbol that DRS transmits place.
38. terminal as claimed in claim 34, it is characterised in that when the described downlink reference signal for demodulating described PBCH is DRS, and when described reception unit adopts P antenna port to launch PBCH described in diversity reception, described reception unit is further used for:
Described PBCH transfer resource comprises the OFDM symbol of the described RE corresponding on the antenna port at its transmission place for the downlink reference signal followed the tracks of and/or the downlink reference signal for demodulating, vacate the available RE of part and do not receive PBCH, so that for transmitting the integral multiple that number is P of the RE of PBCH in described OFDM symbol；Wherein, P=2 or 4, described available RE is except the described downlink reference signal for following the tracks of and/or other RE except the RE that the downlink reference signal that demodulates is corresponding on the antenna port at its transmission place in OFDM symbol described in PBCH transfer resource.
39. terminal as claimed in claim 38, it is characterized in that, described reception unit is in described PBCH transfer resource on other RE except RE corresponding on antenna port 0 for CRS, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP is 48* [46-A] bit, under extension CP, the coded-bit of carrying is 48* [44-A] bit, and wherein, A is the number of the RE vacated；Or,
Described reception unit in described PBCH transfer resource except DRS described DRS transmit place K antenna port on correspondence RE except other RE on, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP and extension CP is 48* [48-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource；Or,
Described reception unit in described PBCH transfer resource except DRS transmits RE and CRS corresponding on K the antenna port at place on antenna port 0 on other RE except the RE of correspondence at described DRS, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP is 48* [46-B-A] bit, under extension CP, the coded-bit of carrying is 48* [44-B-A] bit, wherein, A is the number of the RE vacated, and B is the number of RE corresponding on K the antenna port that described DRS transmits place for DRS in PBCH transfer resource.
40. such as the terminal as described in arbitrary in claim 34～39, it is characterized in that, when the described downlink reference signal for demodulating described PBCH is DRS, the value of described K is 1 or 2 or 4, as described K=1, it is antenna port 5 or antenna port 7 or antenna port 8 that described DRS transmits K the antenna port at place；Or, when described K is more than 1, it is that antenna port 7 arrives antenna port K+6 that described DRS transmits K the antenna port at place.
41. such as the terminal as described in arbitrary in claim 34～39, it is characterised in that when the described downlink reference signal for demodulating PBCH is DRS, described reception unit is used for:
The cyclic redundancy check (CRC) of described PBCH not being unscrambled, the antenna port number that the described DRS for demodulating PBCH transmits place is the antenna port number made an appointment；Or,
The CRC of described PBCH is unscrambled by the corresponding relation according to the DRS for demodulating PBCH the set antenna port number and scramble sequence transmitting place, and described scramble sequence represents that the described DRS for demodulating PBCH transmits the antenna port number at place.
42. such as the terminal as described in arbitrary in claim 34～39, it is characterised in that the described downlink reference signal for following the tracks of also includes: one or more combinations in location reference signals PRS, channel state information reference signals CSI-RS.
43. terminal as claimed in claim 34, it is characterized in that, as the CRS that the described downlink reference signal for demodulating described PBCH is for demodulating, described reception unit removes the RE that DRS is corresponding on the antenna port that described DRS transmits place in described PBCH transfer resource, and CRS is at antenna port 0, antenna port 1, other RE outside RE corresponding on antenna port 2 and antenna port 3, when receiving described PBCH, PBCH coded-bit of carrying under conventional CP is 48* [40-B] bit, under extension CP, the coded-bit of carrying is 48* [36-B] bit, wherein, B is the number of RE corresponding on the antenna port that described DRS transmits place for DRS in described PBCH transfer resource.
44. the terminal as described in claim 34 or 43, it is characterised in that as the CRS that the described downlink reference signal for demodulating described PBCH is for demodulating, described reception unit is used for:
The CRS received in subframe for demodulating PBCH is transmitted at described PBCH, or transmit PBCH in subframe at described PBCH and transmit the CRS received on PRB corresponding to RE for demodulating PBCH, or in described PBCH transmits the time slot at the PBCH transmission place in subframe, receive the CRS for demodulating PBCH, or PBCH transmits the CRS received in PRB corresponding to RE for demodulating PBCH in described PBCH transmits the time slot of the transmission PBCH in subframe, or transmit the CRS received in the OFDM symbol transmit PBCH for demodulating PBCH in subframe at described PBCH, or transmit in PRB corresponding for PBCH transmission RE in subframe at described PBCH in the OFDM symbol transmit PBCH, receive the CRS for demodulating PBCH.
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