CN109547081A - The processing system of the sending, receiving method of synchronization signal, device and synchronization signal - Google Patents

The processing system of the sending, receiving method of synchronization signal, device and synchronization signal Download PDF

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Publication number
CN109547081A
CN109547081A CN201811643467.2A CN201811643467A CN109547081A CN 109547081 A CN109547081 A CN 109547081A CN 201811643467 A CN201811643467 A CN 201811643467A CN 109547081 A CN109547081 A CN 109547081A
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sss
antenna port
pss
dmrs
port
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CN201811643467.2A
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CN109547081B (en
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苟伟
夏树强
韩晓钢
孙云锋
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03891—Spatial equalizers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Abstract

The invention discloses the processing systems of the sending, receiving method of synchronization signal, device and synchronization signal, wherein, network side sends PSS and/or SSS in the subcarrier or Physical Resource Block of carrying primary synchronization signal PSS and/or secondary synchronization signal SSS, using antenna port identical with the antenna port of demodulated reference signal DMRS in the subcarrier or Physical Resource Block.Through the invention, the demodulation performance of data is improved.

Description

The processing system of the sending, receiving method of synchronization signal, device and synchronization signal
The application be to application No. is: 201310138436.2, the applying date are as follows: on 04 19th, 2013, entitled The divisional application of the original application of " processing method, apparatus and system, channel estimation methods and the device of synchronization signal ".
Technical field
The present invention relates to the communications fields, in particular to the sending, receiving method of synchronization signal, device and synchronous letter Number processing system.
Background technique
In the research in the version R11 stage of long term evolution (Long Term Evolution, referred to as LTE), in multicarrier AF panel side on the basis of polymerization technique, further for frequency spectrum resource utilization rate, between network energy-saving and cell Face proposes new demand.In order to realize this demand, propose new carrier type (New Carrier Type, referred to as NCT) (new carrier wave).Applied by means of carrier aggregation technology, new carrier wave have a salient feature, be exactly design when not It needs to consider backwards compatibility, it can be using more new technologies wherein.For example, determining in LTE R11 for new carrier wave Justice is to need to match operation at least one compatible carrier wave (also referred to as to carry out carrier wave polymerization methods fortune with a compatible carrier wave Battalion), do not configure cell reference signals (Cell-specific Reference Signals, the abbreviation of LTE R8 in new carrier wave CRS), to avoid adjacent cell in the serious CRS interference of cell edge, especially in heterogeneous network (HETerogeneous NETwork, HetNet) CRS interference under scene between macrocell and Microcell.In the discussion of LTE R11, in order to further Promote the usage scenario of new carrier wave, it was also proposed that the new carrier wave of independent operation, new carrier wave has independent access UE, independent fortune at this time The ability of battalion.It can certainly be with other carrier pairings or polymerization operation.
Currently, coming into the LTE R12 stage, the standardization effort of new carrier wave is postponed in LTE R12, and is had Some preliminary conclusions and introduce some new functions again.
For new carrier wave by as a kind of related work that new carrier type is being standardized, here is in new carrier wave Some Consensus conclusions:
Synchronized tracking is executed in new carrier wave using the single port CRS in 5 milliseconds of (5ms) periods and (is known as 5ms in the application CRS, or be synchronized tracking CRS), it is clear that it is here different with the CRS in related system, and the port number of its support It is different.
In new carrier wave in especially synchronous new carrier wave, currently discuss whether configure transmission primary synchronization signal/auxiliary synchronization Signal (Primary Synchronization Signal/Secondary Synchronization Signal, referred to as PSS/SSS) and 5ms CRS, most companies think that there is still a need for configurations to send PSS/SSS and 5ms CRS in synchronous new carrier wave.
It is unworthy of setting Physical Downlink Control Channel (Physical Downlink Control Channel, abbreviation in new carrier wave For the domain PDCCH), and original Physical Downlink Control Channel (Physical Downlink Control Channel, referred to as PDCCH) domain may be used to transmitting physical DSCH Downlink Shared Channel (Physical Downlink Shared Channel, abbreviation For PDSCH).It is unworthy of glove reason hybrid automatic request retransmission indicating chanel (Physical HARQ Indicator in new carrier wave Channel, referred to as PHICH) and Physical Control Format Indicator Channel (Physical Control Format Indicator Channel, referred to as PCFICH).
New carrier wave divides into dependent operation and two kinds of independent operation, and the new carrier wave of foregoing description is that non-independent operation newly carries Wave.The difference of independent operation new carrier wave and dependent operation new carrier wave is: dependent runs NCT needs and at least one is backward Compatible carrier wave polymerization operation.General dependent operation NCT can only be UE secondary cell (Secondary Cell, referred to as Scell)。
In new carrier wave, preliminary project still continues to use the demodulated reference signal (Demodulation in LTE R11 Reference Signal, referred to as DMRS) pattern as demodulated reference signal, but among carrier wave 6 physics money Source block (Physical Resource Block, referred to as PRB) is to (defining identical as the PRB pair in 36.211 agreement of LTE) In, due to carrying PSS/SSS at this point, the position of symbol where the position of PSS/SSS and DMRS pattern is in intermediate 6 PRB pairs It clashes.In LTE R11, solve to conflict and mapping DMRS in 6 PRB pairs not among this, UE still may be used at this time To do data demodulation using the CRS in 6 intermediate PRB pairs.Due to not retransmiting CRS in new carrier wave, so intermediate 6 DMRS is needed to configure in PRB pair, so this Conflict solving is necessary.And there are also solutions, such as some public affairs What department provided, it is contemplated that the DMRS clashed is in the OFDM symbol of part, so suggesting to send out in intermediate 6 PRB pairs DMRS in the OFDM symbol of raw conflict sends PSS/SSS after destroying, other in 6 PRB pairs among UE use are remaining DMRS in OFDM symbol solves adjusting data, causes demodulation performance poor.
For the poor problem of the data demodulation performance of the processing method of synchronization signal in the related technology, not yet mention at present Effective solution scheme out.
Summary of the invention
The present invention provides the processing systems of a kind of sending, receiving method of synchronization signal, device and synchronization signal, so that It solves the above problems less.
According to an aspect of the invention, there is provided a kind of sending method of synchronization signal, comprising: network side is led in carrying In the subcarrier or Physical Resource Block of synchronization signal PSS and/or secondary synchronization signal SSS, provided using with the subcarrier or physics The identical antenna port of the antenna port of demodulated reference signal DMRS in source block sends the PSS and/or SSS.
Optionally, the network side is in the subcarrier or Physical Resource Block for carrying the PSS and/or SSS, using with institute The identical antenna port of antenna port for stating the DMRS in subcarrier or Physical Resource Block sends the PSS and/or described SSS includes following one:
The network side on the subcarrier or Physical Resource Block by the PSS be mapped as following DMRS antenna port it One signal:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10；
The network side on the subcarrier or Physical Resource Block by the SSS be mapped as following DMRS antenna port it One signal:
The antenna port 7, the antenna port 8, the antenna port 9, the antenna port 10；
The PSS and the SSS are mapped as following DMRS on the subcarrier or Physical Resource Block by the network side The signal of one of antenna port, or the signal of two antenna ports being mapped as in following DMRS antenna port:
The antenna port 7, the antenna port 8, the antenna port 9, the antenna port 10.
Optionally, the network side directly or indirectly indicates primary synchronization signal described in receiving end and the secondary synchronization signal Corresponding default antenna port.
Optionally, the corresponding default antenna port of the primary synchronization signal is antenna port 7, and the secondary synchronization signal is corresponding Default antenna port be antenna port 8；Or the corresponding default antenna port of the primary synchronization signal is antenna port 8, institute Stating the corresponding default antenna port of secondary synchronization signal is antenna port 7.
Optionally, on the subcarrier or Physical Resource Block for carrying the PSS and/or SSS, with the PSS And/or SSS be used as DMRS antenna port reference signal when, the occupied RE of the antenna port of the DMRS be the PSS and/ Or the resource unit RE that the SSS is occupied, and, sequence used in the antenna port of the DMRS is the PSS and/or described The antenna port of the sequence that SSS is used, the DMRS is one of the following: antenna port 7, antenna port 8, antenna port 9, antenna Port 10.
Optionally, on the Physical Resource Block for carrying the PSS and/or SSS, the PSS and/or the SSS are used When making DMRS antenna ports M, the reference signal of antenna port N,
The RE that the DMRS antenna ports M occupies is the resource unit RE that the PSS or SSS is occupied, the antenna Sequence used in the M of port is sequence used in the PSS or SSS；
The RE that the DMRS antenna port N is occupied is the resource unit RE that the PSS or SSS is occupied, the antenna Sequence used in the M of port is sequence used in the PSS or SSS；
The DMRS antenna ports M and DMRS antenna port N are one of the following: antenna port 7, antenna port 8, antenna The sequence that port 9, antenna port 10, the PSS or the SSS are used is sequence used in the DMRS antenna ports M.
Optionally, the PSS and/or SSS is used as the DMRS antenna ports M and/or the antenna port N When DMRS signal, carries and use identical weight between the PSS and/or the subcarrier or Physical Resource Block of the SSS Carry out precoding processing.
Optionally, on the subcarrier or Physical Resource Block for carrying the PSS and/or SSS,
In single user transmission, the maximum number of layers that dispatch user data is sent is less than or equal to 2；
In multiuser multiplexing transmission, the number of layers that dispatch user data is sent is 1, and multiuser multiplexing transmission Data are based on the PSS or SSS and are sent as antenna DMRS antenna port.
Optionally, the network side indicates the DMRS antenna port and the number of layers by down control channel Distribution condition；Or
The network side notifies receiving end by high-level signaling, value information that the PSS or the SSS are used, described The distribution condition of DMRS antenna port and the number of layers；Or
Enhancing physical down control is sent in the subcarrier or Physical Resource Block for carrying the PSS and/or SSS When channel processed, the antenna end slogan is preset.
Optionally, the antenna port is the DMRS antenna port of standardization agreement agreement；
The antenna port for sending the PSS is identical as the antenna port for sending the SSS；
The antenna port for sending the PSS is different from the antenna port for sending the SSS；Alternatively,
The antenna port of the DMRS is to be arranged by standardization agreement and is the place the PSS and/or SSS The subcarrier or Physical Resource Block used in one in DMRS antenna port.
According to another aspect of the present invention, a kind of method of reseptance of synchronization signal is additionally provided, comprising: holding receiving end Carry primary synchronization signal PSS and/or secondary synchronization signal SSS subcarrier or Physical Resource Block in, using with the subcarrier or object The identical antenna port of antenna port for managing the demodulated reference signal DMRS in resource block receives the PSS and/or SSS.
Optionally, in the receiving end in the subcarrier or Physical Resource Block for carrying the PSS and/or SSS, using with The identical antenna port of the antenna port of the DMRS in the subcarrier or Physical Resource Block receives the PSS and/or institute After stating SSS, the method also includes following one:
The receiving end carries out the channel estimation of one of following DMRS antenna port: antenna port 7, day using the PSS Line end mouth 8, antenna port 9, antenna port 10；
The receiving end carries out the channel estimation of one of following DMRS antenna port: the antenna port using the SSS 7, the antenna port 8, the antenna port 9, the antenna port 10；
The receiving end carries out the channel estimation of one of following DMRS antenna port using the PSS and the SSS, or with The channel estimation of two antenna ports in lower DMRS antenna port: the antenna port 7, the antenna port 8, the antenna Port 9, the antenna port 10；
The receiving end carries out the channel estimation of the antenna port 7 using the PSS or the SSS；
The receiving end carries out the channel estimation of the antenna port 8 using the PSS or the SSS；
The receiving end carries out the channel estimation of the antenna port 7 using the PSS or the SSS, and described in use The PSS or SSS carries out the channel estimation of the antenna port 8.
Optionally, the receiving end directly or indirectly indicates to determine according to network side the primary synchronization signal and described auxiliary The corresponding default antenna port of synchronization signal.
Optionally, the corresponding default antenna port of the primary synchronization signal is antenna port 7, and the secondary synchronization signal is corresponding Default antenna port be antenna port 8；Or the corresponding default antenna port of the primary synchronization signal is antenna port 8, institute Stating the corresponding default antenna port of secondary synchronization signal is antenna port 7.
Optionally, on the subcarrier or Physical Resource Block for carrying the PSS and/or SSS, use DMRS's When antenna port carries out channel estimation, the occupied RE of antenna port of the desired DMRS in receiving end be the PSS and/or The resource unit RE that the SSS is occupied, and, sequence used in the antenna port of the DMRS is the PSS and/or described The antenna port of the sequence that SSS is used, the DMRS is one of the following: antenna port 7, antenna port 8, antenna port 9, antenna Port 10.
Optionally, it on the subcarrier or Physical Resource Block for carrying the PSS and/or SSS, uses DMRS days When line end mouth M and DMRS antenna port N carries out channel estimation,
The RE that the DMRS antenna ports M occupies is the resource unit RE that the PSS or SSS is occupied, the antenna Sequence used in the M of port is sequence used in the PSS or SSS；
The RE that the DMRS antenna port N is occupied is the resource unit RE that the PSS or SSS is occupied, the antenna Sequence used in the M of port is sequence used in the PSS or SSS；
The sequence that the PSS or the SSS are used be the DMRS antenna ports M used in sequence, described DMRS days Line end mouth M and DMRS antenna port N is one of the following: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
Optionally, when the use PSS and/or SSS carries out the DMRS antenna ports M and the antenna port N Channel estimation when, receiving end expectation carries on the subcarrier or Physical Resource Block of the PSS and/or SSS The corresponding precoding weight of DMRS it is identical.
Optionally, on the subcarrier or Physical Resource Block for carrying the PSS and/or SSS,
In single user transmission, the maximum number of layers that dispatch user data is sent is less than or equal to 2；
In multiuser multiplexing transmission, the number of layers that dispatch user data is sent is 1, and multiuser multiplexing transmission Data are based on the PSS or SSS and are sent as DMRS antenna port.
Optionally, the receiving end obtains the DMRS antenna by the Downlink Control Information of reception down control channel The distribution condition of port and the number of layers；Or
The receiving end known by high-level signaling, value information that the PSS or the SSS are used, DMRS days described The distribution condition of line end mouth and the number of layers；Or
Enhancing physical down control is sent in the subcarrier or Physical Resource Block for carrying the PSS and/or SSS When channel processed, the antenna end slogan is preset.
Optionally, the antenna port is the DMRS antenna port of standardization agreement agreement；
The antenna port for sending the PSS is identical as the antenna port for sending the SSS；
The antenna port for sending the PSS is different from the antenna port for sending the SSS；Alternatively,
The antenna port of the DMRS is to be arranged by standardization agreement and is the place the PSS and/or SSS The subcarrier or Physical Resource Block used in one in DMRS antenna port.
According to a further aspect of the invention, a kind of sending device of synchronization signal is additionally provided, network side, packet are applied to It includes: the first mapping block, for the subcarrier or Physical Resource Block in carrying primary synchronization signal PSS and/or secondary synchronization signal SSS In, it is sent out using antenna port identical with the antenna port of demodulated reference signal DMRS in the subcarrier or Physical Resource Block Send the PSS and/or SSS.
Optionally, the antenna port is the DMRS antenna port of standardization agreement agreement；
The antenna port for sending the PSS is identical as the antenna port for sending the SSS；
The antenna port for sending the PSS is different from the antenna port for sending the SSS；Alternatively,
The antenna port of the DMRS is to be arranged by standardization agreement and is the place the PSS and/or SSS The subcarrier or Physical Resource Block used in one in DMRS antenna port.
According to a further aspect of the invention, a kind of reception device of synchronization signal is additionally provided, receiving end, packet are applied to It includes: third receiving module, for the subcarrier or Physical Resource Block in carrying primary synchronization signal PSS and/or secondary synchronization signal SSS In, it is connect using antenna port identical with the antenna port of demodulated reference signal DMRS in the subcarrier or Physical Resource Block Receive the PSS and/or SSS.
Optionally, the antenna port is the DMRS antenna port of standardization agreement agreement；
The antenna port for sending the PSS is identical as the antenna port for sending the SSS；
The antenna port for sending the PSS is different from the antenna port for sending the SSS；Alternatively,
The antenna port of the DMRS is to be arranged by standardization agreement and is the place the PSS and/or SSS The subcarrier or Physical Resource Block used in one in DMRS antenna port.
According to another aspect of the invention, a kind of processing system of synchronization signal is additionally provided, comprising: above-mentioned synchronous letter Number sending device (be applied to network side) and above-mentioned synchronization signal reception device (applied to receiving end).
Through the above technical solutions, subcarrier of the network side in carrying primary synchronization signal PSS and/or secondary synchronization signal SSS Or in Physical Resource Block, using identical with the antenna port of demodulated reference signal DMRS in the subcarrier or Physical Resource Block Antenna port sends PSS and/or SSS, and the demodulation performance for solving the processing method of synchronization signal in the related technology is poor Problem, to improve the data demodulation performance in PRB pair.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the first pass figure of the processing method of synchronization signal according to an embodiment of the present invention；
Fig. 2 is the second flow chart of the processing method of synchronization signal according to an embodiment of the present invention；
Fig. 3 is the first structure block diagram of the processing unit of synchronization signal according to an embodiment of the present invention；
Fig. 4 is the preferred first structure block diagram of the processing unit of synchronization signal according to an embodiment of the present invention；
Fig. 5 is the second structural block diagram of the processing unit of synchronization signal according to an embodiment of the present invention；
Fig. 6 is preferred second structural block diagram of the processing unit of synchronization signal according to an embodiment of the present invention；
Fig. 7 is the first structure block diagram of the processing system of synchronization signal according to an embodiment of the present invention；
Fig. 8 is the third flow chart of the processing method of synchronization signal according to an embodiment of the present invention；
Fig. 9 is the flow chart of channel estimation methods according to an embodiment of the present invention；
Figure 10 is the third structural block diagram of the processing unit of synchronizing channel according to an embodiment of the present invention；
Figure 11 is the preferred third structural block diagram of the processing unit of synchronizing channel according to an embodiment of the present invention；
Figure 12 is the structural block diagram of channel estimating apparatus according to an embodiment of the present invention；
Figure 13 is the preferred structural block diagram of channel estimating apparatus according to an embodiment of the present invention；
Figure 14 is the second structural block diagram of the processing system of synchronization signal according to an embodiment of the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
A kind of processing method of synchronization signal is present embodiments provided, Fig. 1 is synchronization signal according to an embodiment of the present invention Processing method first pass figure, as shown in Figure 1, this method mainly includes the following steps that (step S102- step S104).
Step S102, network side determine one or more antenna ports of multiple PRB pairs of carrying PSS and/or SSS First pre-coding matrix used in DMRS, wherein the first pre-coding matrix has use in multiple PRB.
Step S104, network side carry out precoding to PSS and/or SSS using the first pre-coding matrix.
Through the above steps, by using precoding processing for PSS and/or SSS, which is carrying PSS And/or pre-coding matrix used in the DMRS of one or more antenna ports of multiple PRB pairs of SSS, so that recipient can To use PSS and/or SSS to combine with the DMRS in the PRB pair for carrying PSS and/or SSS for solving adjusting data, solves correlation The poor problem of the demodulation performance of the processing method of synchronization signal in technology, to improve the data demodulation in PRB pair Energy.
Such as: for new carrier wave, clashed when new carrier wave is destroyed in 6 intermediate PRB pairs with PSS and/or SSS DMRS in OFDM symbol, PSS the and/or SSS sending method provided using above-mentioned steps, can solve due to destroying part The problem of demodulation performance caused by DMRS declines.
When implementing, according to using single antenna port and multi-antenna port to send the difference of PSS and/or SSS, network side is true Surely carrying the first pre-coding matrix used in one or more antenna ports of multiple PRB pairs of PSS and/or SSS can lead to Cross following two mode:
Mode one: when sending the PSS and/or SSS using single antenna port, the network side is from the PRB Pair all antenna ports in select an antenna port, it is pre- by used in the DMRS of an antenna port of the selection second Encoder matrix is as first pre-coding matrix；
Mode two: when sending the PSS and/or the SSS using multi-antenna port, the network side is from the PRB Pair all antenna ports in select at least two antenna ports, the DMRS of at least two antenna ports of the selection is used Third pre-coding matrix as first pre-coding matrix.
As a preferably embodiment, network side using pre-coding matrix to the PSS and/or SSS into After row precoding, PSS and/or SSS can also be sent one of as follows:
Mode one: in frequency division duplex (FDD) mode, and be standard cyclic prefix (CP) when, the network side is in 0 He of subframe The PSS after precoding is sent on orthogonal frequency division multiplexing (OFDM) symbol 6 of subframe 5, in the OFDM of subframe 0 and subframe 5 The SSS after precoding is sent on symbol 5；
In time division duplex (TDD) mode, and be standard CP when, network side is sent out in the OFDM symbol 13 of subframe 0 and subframe 5 Send the SSS after precoding, in the OFDM symbol 2 of the subframe 1 and the subframe 6 send precoding after described in PSS；
Mode two: in the standard CP, the network side is sent out in the OFDM symbol 3 of the subframe 0 and the subframe 5 The PSS after precoding is sent, the SSS after precoding is sent in the OFDM symbol 2 of the subframe 0 and subframe 5；
Mode three: in the standard CP, the network side is sent in advance on the symbol 8 of the subframe 0 and the subframe 5 The PSS after coding sends the SSS after precoding in the OFDM symbol 1 of the subframe 0 and the subframe 5.
Mode four: in the FDD mode, and when being the standard CP, the network side is in the subframe 0 and subframe 5 The PSS after precoding is sent in OFDM symbol 8, is sent in the OFDM symbol 3 of the subframe 0 and the subframe 5 pre- The SSS after coding；
In TDD mode, and be the standard CP when, the network side described 0 and the subframe 5 OFDM symbol 8 on The SSS after precoding is sent, the PSS after precoding is sent in the OFDM symbol 0 of the subframe 1 and subframe 6.
Implement when, in order to improve the accuracy of transmission, when the FDD mode and for standard CP configuration when, network side Cancel in the resource of OFDM symbol 5 and OFDM symbol 6 in the PRB pair of carrying PSS and/or SSS and sends DMRS；In the side TDD When formula and standard CP configuration, network side is cancelled in the resource of the OFDM symbol 13 in the PRB pair of carrying SSS to be sent DMRS。
When implementing, network side can be realized using numerous embodiments using the first pre-coding matrix to PSS and/or SSS carries out precoding.Such as: when sending PSS and/or SSS using multi-antenna port, network side will carry PSS and/or SSS Subcarrier be divided into multiple groups；The PSS and/or SSS of each group of carrying are corresponding using the DMRS of each group of corresponding antenna port Pre-coding matrix carries out precoding；Wherein, above-mentioned each group of subcarrier is sent using different antenna ports, packet count Equal to the sum for sending antenna port used in the PSS and/or SSS.
It when implementing, can be grouped according to scheme in the related technology, as a preferably embodiment, network The subcarrier for carrying PSS and/or SSS can be divided into multiple groups one of in the following way by side:
Mode one: it is grouped according to the number for the subcarrier for carrying the PSS and/or SSS；
Mode two: it is grouped according to the PRB for the subcarrier for carrying the PSS and/or SSS for unit.
It is as preferably embodiment, a pre-coding matrix of first pre-coding matrix in the multiple PRB pair It is identical.
As another preferably embodiment, an antenna port of selection includes following one: antenna port 7, day Line end mouth 8, antenna port 9, antenna port 10.
As another preferably embodiment, at least two antenna port of selection includes following antenna port In at least two: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
For receiving end, network side using first pre-coding matrix to the PSS and/or SSS into After row precoding, needs to be decoded the data received, decoded preferred embodiment is described in detail below:
Determine multiple PRBs of the PRB pair in carrying PSS and/or SSS of the transmission data of the network side distribution in receiving end When centering, receiving end receives following one in the PRB pair for sending data: the data of network side transmission, DMRS, PSS；Network side The data of transmission, DMRS, SSS；The data of network side transmission, DMRS, PSS and SSS；Then receiving end execution is following operates it One:
Operation one: receiving end is the network side using the PSS and/or the SSS and DMRS that receive The data of transmission are demodulated；
Operation two: receiving end carries out combined decoding to the following data that receives: the PSS that receives and/or described The data that SSS, DMRS, network side are sent.
Preferably, receiving end determines pre- used in the PSS and/or SSS received from the PRB pair for sending data The pre-coding matrix of encoder matrix and the DMRS received from the PRB pair for sending data is identical.
Preferably, when sending the PSS and/or SSS using single antenna port, the receiving end is determined from described Send antenna port used in the PSS and/or SSS received in the PRB pair of data and from the PRB pair for sending data Antenna port used in the DMRS received is identical；Or, the receiving end is determined from the PRB pair for sending data Pre-coding matrix corresponding to the PSS and/or SSS received in OFDM symbol is to be stopped transmission in the OFDM symbol The pre-coding matrix of DMRS.
This preferred embodiment provides a kind of processing method of synchronization signal, and Fig. 2 is synchronization according to an embodiment of the present invention The second flow chart of the processing method of signal, as shown in Fig. 2, this method mainly includes the following steps that (step S202- step S204)。
Step S202: middle reception PSS and/or SSS of the receiving end in the PRB pair of distribution, wherein PSS and/or SSS are by net Network side using the first pre-coding matrix carry out precoding processing, the first pre-coding matrix be network side determine carrying PSS and/or Pre-coding matrix used in the DMRS of one or more antenna ports of multiple PRB pairs of SSS, the first pre-coding matrix is in institute Stating in multiple PRB has use.
Step S204: receiving end uses the downlink data in the PRB pair of PSS and/or SSS demodulation distribution.
Through the above steps, the PSS and/or SSS crossed by receiving precoding processing, the pre-coding matrix are carrying PSS And/or pre-coding matrix used in the DMRS of one or more antenna ports of multiple PRB pairs of SSS, so that receiving end can To use PSS and/or SSS to combine with the DMRS in the PRB pair for carrying PSS and/or SSS for solving adjusting data, solves correlation The poor problem of the demodulation performance of the processing method of synchronization signal in technology, to improve the data demodulation in PRB pair Energy.
Such as: for new carrier wave, clashed when new carrier wave is destroyed in 6 intermediate PRB pairs with PSS and/or SSS DMRS in OFDM symbol, PSS the and/or SSS sending method provided using above-mentioned steps, can solve due to destroying part The problem of demodulation performance caused by DMRS declines.
When implementing, receiving end can demodulate the downlink data in the PRB pair of distribution by numerous embodiments, as one A preferably embodiment, receiving end determine that the network side sends the PRB pair of data in the carrying PSS and/or SSS PRB pair in；Receiving end receives the PSS and/or SSS and DMRS in the PRB pair for sending data；Receiving end uses PSS And/or SSS and the DMRS demodulate data.
Preferably, the pre-coding matrix that the PSS that receives and/or SSS are used from the PRB pair for sending data with from described It is identical for sending the pre-coding matrix of the DMRS received in the PRB pair of data.
Preferably, the antenna port that the PSS that receives and/or SSS are used from the PRB pair for sending data with from the hair It is identical for sending antenna port used in the DMRS received in the PRB pair of data.
Preferably, the pre-coding matrix for sending DMRS is cancelled in the corresponding OFDM symbol of PSS and/or SSS received It is corresponding first pre-coding matrix of the PSS and/or SSS.
When implementing, according to using single antenna port and multi-antenna port to send the difference of PSS and/or SSS, using single When antenna port sends the PSS and/or SSS, first pre-coding matrix is the network side from the PRB pair Second pre-coding matrix used in the antenna port selected in all antenna ports；Institute is being sent using multi-antenna port When stating the PSS and/or SSS, first pre-coding matrix is the network side from all antenna ports of the PRB pair Third pre-coding matrix used at least two antenna ports of selection.
Preferably, the PRB pair of distribution refer to the network side be the receiving end distribution be used for transmission downlink data and/ Or the PRB pair of control signaling, and the PSS and/or SSS is configured in the PRB pair of the distribution.Than preferably, downlink Data include: user face data and control class signaling.
Preferably, when sending the PSS and/or the SSS using multi-antenna port, the PSS and/or described is carried The subcarrier of SSS will be divided into multiple groups by the network side；The PSS and/or the SSS of each group of carrying are every using this The DMRS of a group of corresponding antenna port corresponds to pre-coding matrix and carries out precoding；Wherein, each group of the subcarrier uses Different antenna ports are sent, and packet count is equal to the sum for sending antenna port used in the PSS and/or SSS.
Preferably, one of as follows the subcarrier by the PSS and/or the SSS is carried by the network side Multiple groups will be divided into:
It is grouped according to the number for the subcarrier for carrying the PSS and/or SSS；
It is grouped according to the PRB for the subcarrier for carrying the PSS and/or SSS for unit.
It is as preferably embodiment, a pre-coding matrix of first pre-coding matrix in the multiple PRB pair It is identical.
As another preferably embodiment, one antenna port of selection includes following one: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
As another preferably embodiment, at least two antenna port of selection includes in following antenna port At least two: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions It is executed in computer system, although also, logical order is shown in flow charts, and it in some cases, can be with not The sequence being same as herein executes shown or described step.
In another embodiment, a kind of processing software of synchronization signal is additionally provided, the software is above-mentioned for executing Technical solution described in embodiment and preferred embodiment.
In another embodiment, a kind of storage medium is additionally provided, above-mentioned data are stored in the storage medium and are passed Defeated software, which includes but is not limited to: CD, floppy disk, hard disk, scratch pad memory etc..
The embodiment of the invention also provides a kind of processing units of synchronization signal, are applied to network side, the synchronization signal Processing unit can be used to implement the processing method and preferred embodiment of above-mentioned synchronization signal, carry out explanation, no It repeats, the module being related in the processing unit of the synchronization signal is illustrated again below.As used below, term The combination of the software and/or hardware of predetermined function may be implemented in " module ".Although system and method described in following embodiment It is preferably realized with software, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.
Fig. 3 is the first structure block diagram of the processing unit of synchronization signal according to an embodiment of the present invention, as shown in figure 3, should Device includes: the first determining module 32, and the first precoding module 34 is below described in detail above structure.
First determining module 32, for determining multiple physics of carrying primary synchronization signal PSS and/or secondary synchronization signal SSS First pre-coding matrix used in the demodulated reference signal DMRS of one or more antenna ports of resource block PRB pair, wherein First pre-coding matrix has use in the multiple PRB；
First precoding module 34 is connected to the first determining module 32, for using that the first determining module 32 determines One pre-coding matrix carries out precoding to PSS and/or SSS.
Fig. 4 is the preferred first structure block diagram of the processing unit of synchronization signal according to an embodiment of the present invention, such as Fig. 4 institute Show, the first determining module 32 includes: first choice module 322, and the second determining module 324, the second selecting module 326, third is true Cover half block 328；Above-mentioned apparatus further include: sending module 42, first processing module 44, Second processing module 46；First precoding Module 34 includes: the first division module 342, the second precoding module 344；First division module 342 includes: the second division module 3422 or third division module 3424, above structure is described in detail below.
First determining module 32 includes: first choice module 322, for using single antenna port send the PSS and/ Or when the SSS, an antenna port is selected from all antenna ports of the PRB pair；Second determining module 324, connection To first choice module 322, second is pre- used in the DMRS of an antenna port for selecting first choice module 322 Encoder matrix is as first pre-coding matrix；Second selecting module 326, for using described in multi-antenna port transmission When the PSS and/or SSS, at least two antenna ports are selected from all antenna ports of the PRB pair；Third determines mould Block 328 is connected to the second selecting module 326, the DMRS of at least two antenna ports for selecting the second selecting module 326 Used third pre-coding matrix is as first pre-coding matrix.
Preferably, above-mentioned apparatus further include: sending module 42 is connected to the first precoding module 34, for pre- first After coding module 34 carries out precoding to the PSS and/or SSS using first pre-coding matrix, according to as follows One of mode sends PSS and/or SSS:
Mode one: in Frequency Division Duplex FDD mode, and be standard cyclic prefix CP when, the network side is in subframe 0 and subframe The PSS after precoding is sent in 5 OFDM symbol 6, is sent in the OFDM symbol 5 of the subframe 0 and the subframe 5 The SSS after precoding；
In Time Division Duplex TDD mode, and when being the standard CP, the network side is in the subframe 0 and the subframe 5 The SSS after precoding is sent in OFDM symbol 13, is sent in the OFDM symbol 2 of the subframe 1 and the subframe 6 pre- The PSS after coding；
Mode two: in the standard CP, in the OFDM symbol 3 of the subframe 0 and the subframe 5 send precoding it The PSS afterwards sends the SSS after precoding in the OFDM symbol 2 of the subframe 0 and subframe 5；
Mode three: in the standard CP, in the OFDM symbol 8 of the subframe 0 and the subframe 5 send precoding it The PSS afterwards sends the SSS after precoding in the OFDM symbol 1 of the subframe 0 and the subframe 5；
Mode four: in the FDD mode, and be the standard CP when, sent on the symbol 8 of the subframe 0 and subframe 5 The PSS after precoding, in the OFDM symbol 3 of the subframe 0 and the subframe 5 send precoding after described in SSS；
In the TDD mode, and be the standard CP when, described 0 and the subframe 5 symbol 8 on send precoding The SSS later sends the PSS after precoding in the OFDM symbol 0 of the subframe 1 and subframe 6.
Preferably, above-mentioned apparatus further include: first processing module 44 is connected to the first precoding module 34, in institute OFDM symbol 5 and OFDM when stating FDD mode and being configured for the standard CP, in the PRB pair of carrying PSS and/or SSS Cancel in the resource of symbol 6 and sends demodulated reference signal DMRS；Second processing module 46 is connected to the first precoding module 34, For in the TDD mode and standard CP configuration, the resource of the OFDM symbol 13 in the PRB pair for carrying the SSS Middle cancellation sends the DMRS.
Preferably, the first precoding module 34 includes: the first division module 342, for sending using multi-antenna port When the PSS and/or SSS, the subcarrier for carrying the PSS and/or the SSS is divided into multiple groups；Second precoding mould Block 344 is connected to the first division module 342, the institute of each of multiple groups for dividing to the first division module 342 carrying It states the PSS and/or SSS and corresponds to pre-coding matrix progress precoding using the DMRS of each group of corresponding antenna port；Its In, each group of the subcarrier is sent using different antenna ports, and packet count, which is equal to, sends the PSS and/or SSS The sum of used antenna port.
Preferably, first division module 342 includes: the second division module 3422, for according to the carrying PSS And/or the number of the subcarrier of the SSS is grouped；Or, third division module 3424, for according to carry the PSS and/ Or the PRB of the subcarrier of the SSS is grouped for unit.
Preferably, pre-coding matrix of above-mentioned first pre-coding matrix in above-mentioned multiple PRB pairs is identical.
Preferably, one antenna port that first choice module 322 selects includes following one: antenna port 7, day Line end mouth 8, antenna port 9, antenna port 10.
Preferably, at least two antenna port of the second selecting module 326 selection includes in following antenna port At least two: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
In another embodiment, a kind of processing software of synchronization signal is additionally provided, the software is above-mentioned for executing Technical solution described in embodiment and preferred embodiment.
In another embodiment, a kind of storage medium is additionally provided, above-mentioned data are stored in the storage medium and are passed Defeated software, which includes but is not limited to: CD, floppy disk, hard disk, scratch pad memory etc..
The embodiment of the invention also provides a kind of processing units of synchronization signal, are applied to receiving end, the synchronization signal Processing unit can be used to implement the processing method and preferred embodiment of above-mentioned synchronization signal, carry out explanation, no It repeats, the module being related in the processing unit of the synchronization signal is illustrated again below.As used below, term The combination of the software and/or hardware of predetermined function may be implemented in " module ".Although system and method described in following embodiment It is preferably realized with software, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.
Fig. 5 is the second structural block diagram of the processing unit of synchronization signal according to an embodiment of the present invention, as shown in figure 5, should Device includes: the first receiving module 52, and the first demodulation module 54 is below described in detail above structure.
First receiving module 52, for the Physical Resource Block PRB pair in distribution middle reception primary synchronization signal PSS and/or Secondary synchronization signal SSS, wherein the PSS and/or SSS is used by a network side the first pre-coding matrix and carries out at precoding Reason, first pre-coding matrix are the one of the multiple PRB pairs for the carrying PSS and/or SSS that the network side determines Pre-coding matrix used in a or mutiple antennas port demodulated reference signal DMRS, wherein first pre-coding matrix There is use in the multiple PRB；First demodulation module 54 is connected to the first receiving module 52, for receiving using first Downlink data in the PRB pair for PSS and/or SSS the demodulation distribution that module 52 receives.
Fig. 6 is preferred second structural block diagram of the processing unit of synchronization signal according to an embodiment of the present invention, the first solution Mode transfer block 54 includes: that the first demodulation module 54 includes: the 4th determining module 542, the second receiving module 544, the second demodulation module 546, above structure is described in detail below.
4th determining module 542, for determining that the network side sends the PRB pair of data in the carrying PSS and/or institute It states in the PRB pair of SSS；Second receiving module 544, is connected to the 4th determining module 542, really for the 4th determining module 542 When the fixed network side sends the PRB pair of data in the PRB pair for carrying the PSS and/or SSS, receives and send data PRB pair in the PSS and/or the SSS and DMRS；Second demodulation module 546 is connected to the second receiving module 544, For using the PSS and/or SSS and DMRS to demodulate the transmission data.
Preferably, the PSS and/or SSS that the second receiving module 544 is received from the PRB pair for sending data are used Pre-coding matrix and the pre-coding matrix of DMRS that is received from the PRB pair for sending data be identical.
Preferably, the PSS and/or SSS that the second receiving module 544 is received from the PRB pair for sending data are used Antenna port and antenna port used in the DMRS that receives from the PRB pair for sending data be identical.
Preferably, transmission is cancelled in the PSS and/or the corresponding OFDM symbol of SSS that the second receiving module 544 receives The pre-coding matrix of DMRS is corresponding first pre-coding matrix of the PSS and/or SSS.
It is described when sending the PSS and/or SSS using single antenna port as a preferably embodiment The antenna port that first pre-coding matrix is selected from all antenna ports of the PRB pair by the network side uses The second pre-coding matrix；When sending the PSS and/or the SSS using multi-antenna port, first pre-coding matrix Third used at least two antenna ports selected from all antenna ports of the PRB pair for the network side prelists Code matrix.
Preferably, the PRB pair of the distribution refers to line number under being used for transmission that the network side is receiving end distribution According to and/or control signaling PRB pair, and in the PRB pair of the distribution be configured with the PSS and/or SSS.Than preferably, The downlink data includes: user face data and control class signaling.
It is carried as a preferably embodiment when sending the PSS and/or the SSS using multi-antenna port The subcarrier of the PSS and/or the SSS will be divided into multiple groups by the network side；The PSS of each group of carrying and/ Or the SSS corresponds to pre-coding matrix using the DMRS of each group of corresponding antenna port and carries out precoding；Wherein, described every A group of subcarrier is sent using different antenna ports, and packet count, which is equal to, to be sent used in the PSS and/or SSS The sum of antenna port.
Preferably, carry the subcarrier of the PSS and/or SSS by the network side one of in the following manner into Row grouping: it is grouped according to the number for the subcarrier for carrying the PSS and/or SSS；
It is grouped according to the PRB for the subcarrier for carrying the PSS and/or SSS for unit.
Preferably, pre-coding matrix of first pre-coding matrix in the multiple PRB pair is identical.
As a preferably embodiment, one antenna port of selection includes following one: antenna port 7, Antenna port 8, antenna port 9, antenna port 10.
As a preferably embodiment, at least two antenna port of selection includes in following antenna port At least two: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
A kind of synchronization system is present embodiments provided, Fig. 7 is the processing system of synchronization signal according to an embodiment of the present invention Structural block diagram, as shown in fig. 7, the synchronization system includes: network side 2 and receiving end 4, wherein the structure of network side 2 such as Fig. 3 Or shown in 4, the structure of receiving end 4 is as shown in Fig. 5 or 6, and details are not described herein.
A kind of processing method of synchronization signal is present embodiments provided, Fig. 8 is synchronization signal according to an embodiment of the present invention Processing method third flow chart, as shown in figure 8, this method comprises the following steps (step S802 and step S804).
Step S802: network side determines the port of the DMRS of the Physical Resource Block pair of carrying PSS and/or SSS.
Step S804: network side is in Physical Resource Block to the signal that PSS and/or SSS are above mapped as to above-mentioned port.
Through the above steps, in Physical Resource Block to the letter that the PSS and/or the SSS are above mapped as to DMRS port Number, i.e., precoding processing is used for PSS and/or SSS, which is the multiple PRB pairs for carrying PSS and/or SSS Pre-coding matrix used in the DMRS of one or more antenna ports, so that recipient can be used PSS and/or SSS and hold The DMRS carried in the PRB pair of PSS and/or SSS combines for solving adjusting data, solves the processing side of synchronization signal in the related technology The poor problem of the demodulation performance of method, to improve the data demodulation performance in PRB pair.
Such as: for new carrier wave, clashed when new carrier wave is destroyed in 6 intermediate PRB pairs with PSS and/or SSS DMRS in OFDM symbol, PSS the and/or SSS sending method provided using above-mentioned steps, can solve due to destroying part The problem of demodulation performance caused by DMRS declines.
As a preferably embodiment, network side is in Physical Resource Block to PSS and/or SSS are above mapped as port Signal can one of in the following manner:
Mode one: network side is in above-mentioned Physical Resource Block to the letter that the PSS is above mapped as to one of following DMRS port Number: port 7, port 8, port 9, port 10.
Mode two: network side is in the Physical Resource Block to the letter that the SSS is above mapped as to one of following DMRS port Number: the port 7, the port 8, the port 9, the port 10.
Mode three: network side is in the Physical Resource Block to the PSS and the SSS are above mapped as following DMRS port One of signal, or the signal of two ports being mapped as in following DMRS port: the port 7, the port 8, the end Mouth 9, the port 10.
Preferably, the network side directly or indirectly indicates primary synchronization signal described in receiving end and the secondary synchronization signal Corresponding default port.Than preferably, the corresponding default port-for-port 7 of the primary synchronization signal, the secondary synchronization signal Corresponding default port-for-port 8；Or the corresponding default port-for-port 8 of the primary synchronization signal, the secondary synchronization signal Corresponding default port-for-port 7.
As a preferably embodiment, in the Physical Resource Block for carrying the PSS and/or SSS to upper, institute is used State PSS and/or SSS be used as DMRS port reference signal when, the occupied RE in the port of the DMRS be the PSS and/or The resource unit RE that the SSS is occupied, and, sequence used in the port of the DMRS is that the PSS and/or SSS makes The port of sequence, the DMRS is one of the following: port 7, port 8, port 9, port 10.
As another preferably embodiment, the Physical Resource Block of the PSS and/or SSS is being carried to upper, institute State the PSS and/or SSS as DMRS port M, port N reference signal when,
The RE that the DMRS port M is occupied is the resource unit RE that the PSS or SSS is occupied, and the port M is made Sequence is sequence used in the PSS or SSS；
The RE that the DMRS port N is occupied is the resource unit RE that the PSS or SSS is occupied, and the port M is made Sequence is sequence used in the PSS or SSS；
The DMRS port M and DMRS port N are one of the following: port 7, port 8, port 9, port 10, the PSS Or the sequence that the SSS is used is sequence used in the DMRS port M.
As another, preferably embodiment, the PSS and/or the SSS are used as the DMRS port M and/or institute When stating the DMRS signal of port N, carries and prelisted between the PRB pair of the PSS and/or the SSS using identical weight Code processing.
Preferably, in the Physical Resource Block for carrying the PSS and/or SSS to upper, in single user transmission, scheduling The maximum number of layers that user data is sent is less than or equal to 2；In multiuser multiplexing transmission, the number of plies of dispatch user data transmission Mesh is 1, and the data of multiuser multiplexing transmission are based on the PSS or SSS and are sent as DMRS port.
As another preferably embodiment, the network side by down control channel indicate the DMRS port with And the distribution condition of the number of layers；Or, the network side notifies the receiving end, the PSS or described by high-level signaling The distribution condition of value information, the DMRS port and the number of layers that SSS is used；Or, carrying the PSS and/or institute When stating transmission enhancing Physical Downlink Control Channel in the PRB pair of SSS, the port numbers are preset.
This preferred embodiment provides a kind of channel estimation methods, and Fig. 9 is channel estimation side according to an embodiment of the present invention The flow chart of method, as shown in figure 9, this method includes the following steps, namely (step S902 and step S904).
Step S902: receiving end receives PSS and/or SSS.
Step S904: receiving end carries out channel estimation using the PSS and/or SSS；Wherein, the PSS and/or described SSS is the signal that the network side is mapped as DMRS port, and the DMRS port is the carrying PSS and/or SSS The port of the DMRS of Physical Resource Block pair.
Through the above steps, receiving end carries out channel estimation using the PSS and/or SSS, and PSS and/or the SSS are The network side is mapped as the signal of DMRS port, and the DMRS port is the physics for carrying the PSS and/or SSS The port of the DMRS of resource block pair, i.e., for PSS and/or SSS use precoding processing, the pre-coding matrix be carrying PSS and/ Or pre-coding matrix used in the DMRS of one or more antenna ports of multiple PRB pairs of SSS, recipient is made Combined with the DMRS in the PRB pair of carrying PSS and/or SSS for solving adjusting data with PSS and/or SSS, solves the relevant technologies The poor problem of the demodulation performance of the processing method of middle synchronization signal, to improve the data demodulation performance in PRB pair.
Such as: for new carrier wave, clashed when new carrier wave is destroyed in 6 intermediate PRB pairs with PSS and/or SSS DMRS in OFDM symbol, PSS the and/or SSS sending method provided using above-mentioned steps, can solve due to destroying part The problem of demodulation performance caused by DMRS declines.
When implementing, receiving end can carry out channel estimation using PSS and/or SSS in several ways, such as such as lower section One of formula:
Mode one: receiving end carries out the channel estimation of one of following DMRS port: port 7, port 8, end using the PSS Mouth 9, port 10.
Mode two: receiving end carries out the channel estimation of one of following DMRS port using the SSS: the port 7, described Port 8, the port 9, the port 10.
Mode three: receiving end carries out the channel estimation of one of following DMRS port using the PSS and the SSS, or with The channel estimation of two ports in lower DMRS port: the port 7, the port 8, the port 9, the port 10.
Mode four: the receiving end carries out the channel estimation of the port 7 using the PSS or the SSS.
Mode five: receiving end carries out the channel estimation of the port 8 using the PSS or the SSS.
Mode six: receiving end carries out the channel estimation of the port 7 using the PSS or the SSS, and described in use The PSS or SSS carries out the channel estimation of the port 8.
As another, preferably embodiment, receiving end directly or indirectly indicate described in determination according to the network side Primary synchronization signal and the corresponding default port of the secondary synchronization signal.Than preferably, the corresponding default port of primary synchronization signal is Port 7, the corresponding default port-for-port 8 of the secondary synchronization signal；Or the corresponding default port of the primary synchronization signal is Port 8, the corresponding default port-for-port 7 of the secondary synchronization signal.
As another preferably embodiment, in the Physical Resource Block for carrying the PSS and/or SSS to upper, make When carrying out channel estimation with the port of DMRS, the occupied RE in port of the desired DMRS in receiving end be the PSS and/or The resource unit RE that the SSS is occupied, and, sequence used in the port of the DMRS is that the PSS and/or SSS makes The port of sequence, the DMRS is one of the following: port 7, port 8, port 9, port 10.
Preferably, DMRS port M and DMRS are used to upper in the Physical Resource Block for carrying the PSS and/or SSS When port N carries out channel estimation, the RE that the DMRS port M is occupied is the resource unit RE that the PSS or SSS is occupied, Sequence used in the port M is sequence used in the PSS or SSS；The RE that the DMRS port N is occupied is institute Sequence used in the resource unit RE, the port M that the PSS or SSS is occupied is stated to be used by the PSS or the SSS Sequence；The sequence that the PSS or the SSS are used be the DMRS port M used in sequence, the DMRS port M and DMRS port N is one of the following: port 7, port 8, port 9, port 10.
Preferably, when the channel for carrying out the DMRS port M and the port N using the PSS and/or the SSS is estimated Timing, the receiving end expectation carry the Physical Resource Block of the PSS and/or SSS to the upper corresponding precoding of DMRS Weight is identical.
As a preferably embodiment, in the Physical Resource Block for carrying the PSS and/or SSS to upper, in list When user is transmitted, the maximum number of layers that dispatch user data is sent is less than or equal to 2；In multiuser multiplexing transmission, scheduling is used The number of layers that user data is sent is 1, and the data of multiuser multiplexing transmission are based on the PSS or SSS as DMRS Port is sent.
Preferably, the receiving end obtains the DMRS port by the Downlink Control Information of reception down control channel And the distribution condition of the number of layers；Or, the receiving end is known by high-level signaling, what the PSS or the SSS were used The distribution condition of value information, the DMRS port and the number of layers；Or, in the PRB for carrying the PSS and/or SSS When centering sends enhancing Physical Downlink Control Channel, the port numbers are preset.
It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions It is executed in computer system, although also, logical order is shown in flow charts, and it in some cases, can be with not The sequence being same as herein executes shown or described step.
In another embodiment, a kind of processing software of synchronization signal is additionally provided, the software is above-mentioned for executing Technical solution described in embodiment and preferred embodiment.
In another embodiment, a kind of storage medium is additionally provided, above-mentioned data are stored in the storage medium and are passed Defeated software, which includes but is not limited to: CD, floppy disk, hard disk, scratch pad memory etc..
The embodiment of the invention also provides a kind of processing units of synchronization signal, are applied to network side, the synchronization signal Processing unit can be used to implement the processing method and preferred embodiment of above-mentioned synchronization signal, carry out explanation, no It repeats, the module being related in the processing unit of the synchronization signal is illustrated again below.As used below, term The combination of the software and/or hardware of predetermined function may be implemented in " module ".Although system and method described in following embodiment It is preferably realized with software, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.
Figure 10 is the third structural block diagram of the processing unit of synchronizing channel according to an embodiment of the present invention, as shown in Figure 10, The device includes: the 5th determining module 102, and the first mapping block 104 is below described in detail above structure.
5th determining module 102, for determining the physical resource of carrying primary synchronization signal PSS and/or secondary synchronization signal SSS The port of the demodulated reference signal DMRS of block pair；First mapping block 104, is connected to the 5th determining module 102, for described Physical Resource Block is to the signal that the PSS and/or the SSS are above mapped as to the port that the 5th determining module 102 determines.
Figure 11 is the preferred third structural block diagram of the processing unit of synchronizing channel according to an embodiment of the present invention, such as Figure 11 One of it is shown, the first mapping block 104 comprises the following modules: the second mapping block 1041, third mapping block 1042, the 4th reflects Penetrate module 1043；Above-mentioned apparatus further include: the first indicating module 112, the second indicating module 114, notification module 116, at third Module 118 is managed, above structure is described in detail below.
First mapping block 104 one of comprises the following modules:
Second mapping block 1041, in the Physical Resource Block to the PSS is above mapped as following DMRS port One of signal: port 7, port 8, port 9, port 10；
Third mapping block 1042, in the Physical Resource Block to the SSS is above mapped as following DMRS port One of signal: the port 7, the port 8, the port 9, the port 10；
4th mapping block 1043, it is following for being mapped as the PSS and the SSS to above in the Physical Resource Block The signal of one of DMRS port, or the signal of two ports being mapped as in following DMRS port: the port 7, the port 8, the port 9, the port 10.
Preferably, above-mentioned apparatus further include: the first indicating module 112 is connected to the 5th determining module 102, for direct Or default port corresponding to primary synchronization signal described in receiving end and the secondary synchronization signal is indicated indirectly.
Preferably, the corresponding default port-for-port 7 of the primary synchronization signal, the corresponding default end of the secondary synchronization signal Mouth is port 8；Alternatively, the corresponding default port-for-port 8 of the primary synchronization signal, the corresponding default end of the secondary synchronization signal Mouth is port 7.
Preferably, it is used with the PSS and/or SSS in the Physical Resource Block for carrying the PSS and/or SSS to upper When making the reference signal of DMRS port, the occupied RE in the port of the DMRS is the money that the PSS and/or SSS is occupied Source unit RE, and, sequence used in the port of the DMRS is the sequence that the PSS and/or the SSS are used, described The port of DMRS is one of the following: port 7, port 8, port 9, port 10.
Preferably, the Physical Resource Block of the PSS and/or SSS is being carried to upper, the PSS and/or the SSS As DMRS port M, port N reference signal when,
The RE that the DMRS port M is occupied is the resource unit RE that the PSS or SSS is occupied, and the port M is made Sequence is sequence used in the PSS or SSS；
The RE that the DMRS port N is occupied is the resource unit RE that the PSS or SSS is occupied, and the port M is made Sequence is sequence used in the PSS or SSS；
The DMRS port M and DMRS port N are one of the following: port 7, port 8, port 9, port 10, the PSS Or the sequence that the SSS is used is sequence used in the DMRS port M.
Preferably, the PSS and/or SSS is used as the DMRS signal of the DMRS port M and/or port N When, it carries and carries out precoding processing using identical weight between the PRB pair of the PSS and/or the SSS.
Preferably, in the Physical Resource Block for carrying the PSS and/or SSS to upper,
In single user transmission, the maximum number of layers that dispatch user data is sent is less than or equal to 2；
In multiuser multiplexing transmission, the number of layers that dispatch user data is sent is 1, and multiuser multiplexing transmission Data are based on the PSS or SSS and are sent as DMRS port.
Preferably, above-mentioned apparatus further include: the second indicating module 114 is connected to the 5th determining module 102, for passing through Down control channel indicates the distribution condition of the DMRS port and the number of layers；Or,
Notification module 116 is connected to the 5th determining module 102, described for notifying the receiving end by high-level signaling The distribution condition of value information, the DMRS port and the number of layers that PSS or the SSS are used；Or,
Third processing module 118 is connected to the 5th determining module 102, for carrying the PSS's and/or SSS When sending enhancing Physical Downlink Control Channel in PRB pair, above-mentioned port numbers are preset.
In another embodiment, a kind of channel estimation software is additionally provided, the software is for executing above-described embodiment And technical solution described in preferred embodiment.
In another embodiment, a kind of storage medium is additionally provided, above-mentioned channel is stored in the storage medium and is estimated Software is counted, which includes but is not limited to: CD, floppy disk, hard disk, scratch pad memory etc..
The embodiment of the invention also provides a kind of channel estimating apparatus, are applied to receiving end, the processing dress of the synchronization signal The processing method and preferred embodiment that can be used to implement above-mentioned synchronization signal are set, explanation had been carried out, and had repeated no more, The module being related in the channel estimating apparatus is illustrated below.As used below, term " module " may be implemented The combination of the software and/or hardware of predetermined function.Although system and method described in following embodiment are preferably come with software It realizes, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.
Figure 12 is the structural block diagram of channel estimating apparatus according to an embodiment of the present invention, and as shown in figure 12, which includes: Third receiving module 122 and the first channel estimation module 124, are below described in detail above structure.
Third receiving module 122, for receiving primary synchronization signal PSS and/or secondary synchronization signal SSS；First channel estimation Module 124 is connected to third receiving module 122, and the PSS and/or SSS for being received using third receiving module 122 are carried out Channel estimation；Wherein, the PSS and/or SSS is mapped as the signal of DMRS port, and the DMRS for the network side Port is the port for carrying the DMRS of Physical Resource Block pair of the PSS and/or SSS.
Figure 13 is the preferred structural block diagram of channel estimating apparatus according to an embodiment of the present invention, as shown in figure 13, first Module of the channel estimation module 124 including following one: second channel estimation module 1241, third channel estimation module 1242, 4th channel estimation module 1243, the 5th channel estimation module 1244, the 6th channel estimation module 1245, the 8th channel estimation mould Block 1246, above-mentioned apparatus further include: first obtains module 134, and second obtains module 136, presetting module 138, below to above-mentioned Structure is described in detail.
First channel estimation module 124 includes the module of following one:
Second channel estimation module 1241, for carrying out the channel estimation of one of following DMRS port using the PSS:
Port 7, port 8, port 9, port 10；
Third channel estimation module 1242, for carrying out the channel estimation of one of following DMRS port using the SSS:
The port 7, the port 8, the port 9, the port 10；
4th channel estimation module 1243, for carrying out the letter of one of following DMRS port using the PSS and the SSS The channel estimation of road estimation or two ports in following DMRS port:
The port 7, the port 8, the port 9, the port 10；
5th channel estimation module 1244, for carrying out the channel estimation of the port 7 using the PSS or the SSS；
6th channel estimation module 1245, for carrying out the channel estimation of the port 8 using the PSS or the SSS；
8th channel estimation module 1246, for carrying out the channel estimation of the port 7 using the PSS or the SSS, And the channel estimation of the port 8 is carried out using the PSS or the SSS.
Preferably, above-mentioned apparatus further include: the 6th determining module 132 is used for according to the network side directly or indirectly It indicates to determine the primary synchronization signal and the corresponding default port of the secondary synchronization signal.
Preferably, the corresponding default port-for-port 7 of the primary synchronization signal, the corresponding default end of the secondary synchronization signal Mouth is port 8；Or the corresponding default port-for-port 8 of the primary synchronization signal, the corresponding default end of the secondary synchronization signal Mouth is port 7.
Preferably, letter is carried out using the port of DMRS to upper in the Physical Resource Block for carrying the PSS and/or SSS When road is estimated, the occupied RE in port of the desired DMRS in receiving end is the resource that the PSS and/or SSS is occupied Unit R E, and, sequence used in the port of the DMRS is the sequence that the PSS and/or the SSS are used, the DMRS Port be one of the following: port 7, port 8, port 9, port 10.
Preferably, DMRS port M and DMRS are used to upper in the Physical Resource Block for carrying the PSS and/or SSS When port N carries out channel estimation,
The RE that the DMRS port M is occupied is the resource unit RE that the PSS or SSS is occupied, and the port M is made Sequence is sequence used in the PSS or SSS；
The RE that the DMRS port N is occupied is the resource unit RE that the PSS or SSS is occupied, and the port M is made Sequence is sequence used in the PSS or SSS；
The sequence that the PSS or the SSS are used be the DMRS port M used in sequence, the DMRS port M and DMRS port N is one of the following: port 7, port 8, port 9, port 10.
Preferably, when the channel for carrying out the DMRS port M and the port N using the PSS and/or the SSS is estimated Timing, the receiving end expectation carry the Physical Resource Block of the PSS and/or SSS to the upper corresponding precoding of DMRS Weight is identical.
Preferably, in the Physical Resource Block for carrying the PSS and/or SSS to upper, in single user transmission, scheduling The maximum number of layers that user data is sent is less than or equal to 2；In multiuser multiplexing transmission, the number of plies of dispatch user data transmission Mesh is 1, and the data of multiuser multiplexing transmission are based on the PSS or SSS and are sent as DMRS port.
Preferably, above-mentioned apparatus further include:
First obtains module 134, is connected to third receiving module 122, for the downlink by receiving down control channel Information is controlled, the distribution condition of the DMRS port and the number of layers is obtained；Or,
Second obtain module 136, be connected to third receiving module 122, for being known by high-level signaling, the PSS or The distribution condition of value information, the DMRS port and the number of layers that the SSS is used；Or,
Presetting module 138 is connected to third receiving module 122, in the PRB for carrying the PSS and/or SSS When centering sends enhancing Physical Downlink Control Channel, the port numbers are preset.
A kind of synchronization system is present embodiments provided, Figure 14 is the processing system of synchronization signal according to an embodiment of the present invention The second structural block diagram, as shown in figure 14, which includes: network side 6 and receiving end 8, wherein the structure of network side 6 As shown in either of figures 10 or 11, the structure of receiving end 8 is as shown in Figure 12 or 13, and details are not described herein.
Preferred embodiment one
This preferred embodiment provides the configuration and sending method of a kind of synchronization signal, realizes the transmission of synchronization signal, this Preferred embodiment describes the case where single antenna port.
In the preferred embodiment, base station side executes following steps: network side carries out precoding to PSS and/or SSS, so Afterwards by after precoding PSS and/or SSS send.In this step, the pre-coding matrix that precoding uses are as follows: carrying PSS And/or pre-coding matrix used in the DMRS of 1 antenna port in the mutiple antennas port in multiple PRB pairs of SSS, In, the DMRS of 1 antenna port has use in multiple PRB pair.
Preferably, precoding square of the pre-coding matrix used in the DMRS of 1 antenna port in multiple PRB pair Battle array is identical.
As a preferably embodiment, in order to realize the compatibility of signal processing, which includes port 7, port 8, port 9 or port 10.
It,, can be in different ways corresponding to different duplex modes in order to improve the accuracy of transmission when implementing PSS and/or SSS are handled.
Example 1: in FDD mode, when standard CP is configured, network side sends precoding processing on the symbol #6 of subframe #0 and #5 PSS, on the symbol #5 of subframe #0 and #5 send precoding processing SSS.
(2) in TDD mode, when standard CP is configured, network side sends precoding processing on the symbol #13 of subframe #0 and #5 SSS, on the symbol #2 of subframe #1 and #6 send precoding processing PSS.
Preferably, in example 1, corresponding to different duplex modes, above-mentioned subframe #0 or #5 can be handled as follows: In FDD mode and standard CP configuration, OFDM symbol #5 and #6 resource of the network side in the PRB pair of carrying PSS and/or SSS Middle stopping configuration sending DMRS；In TDD mode and standard CP configuration, OFDM symbol of the network side in the PRB pair of carrying SSS Stop configuration in number #13 resource and sends DMRS.
Example 2: in FDD mode or TDD mode, when standard CP is configured, network side is sent on the symbol #3 of subframe #0 and #5 Precoding processing PSS sends the SSS of precoding processing on the symbol #2 of subframe #0 and #5.
Example 3: under FDD mode or TDD mode, when standard CP is configured, network side is sent out on the symbol #8 of subframe #0 and #5 Precoding processing PSS is sent, the SSS of precoding processing is sent on the symbol #1 of subframe #0 and #5.
Example 4: in FDD mode, when standard CP is configured, network side sends precoding processing on the symbol #8 of subframe #0 and #5 PSS sends the SSS of precoding processing on the symbol #3 of subframe #0 and #5；In TDD mode, when standard CP is configured, network side exists The SSS that precoding processing is sent on the symbol #8 of subframe #0 and #5, sends precoding processing on the symbol #0 of subframe #1 and #6 PSS.
As another, preferably embodiment, receiving end (UE) determine that network side is the transmission data of oneself distribution PRB pair, if send data PRB pair carrying the PSS and/or SSS PRB pair in, PRB of the receiving end from the transmission data Centering receives the data of oneself, while receiving DMRS and synchronization signal (PSS and/or SSS) in the PRB pairs of the transmission data, And the synchronization signal (PSS and/or SSS) and DMRS received in the PRB pair using the transmission data simultaneously is data demodulation.
Than preferably, can determine pre-coding matrix one of in the following way: (1) receiving end default is from the PRB pair In the pre-coding matrix of pre-coding matrix and the DMRS received from the PRB pair that uses of the PSS that receives and/or SSS It is identical；(2) antenna port that the receiving end PSS that receives from above-mentioned PRB pair of default and/or SSS is used with from above-mentioned PRB pair In the antenna port that uses of the DMRS that receives it is identical；(3) PSS and/or SSS received in OFDM symbol is defaulted in receiving end Precoding is carried out using the pre-coding matrix for the DMRS for being stopped transmission in the OFDM symbol.
Preferably, receiving end carries out the data received and the synchronization signal (PSS and/or SSS) received and DMRS Combined decoding.
In the preferred embodiment, correspond to the step of base station side executes, the side UE executes following steps: receiving end (UE) connects The PSS and/or SSS of precoding processing, and the downlink data in the PRB pair for demodulating distribution are carried out in the PRB pair that contracture is matched.
In order to improve the accuracy of demodulation, the PRB pair of above-mentioned distribution refers to that network side is used for transmission downlink for UE distribution The PRB pair of data or control signaling, and PSS and/or SSS is carried in the PRB pair.
It is received as preferably embodiment, an above-mentioned receiving end using single antenna port, wherein the single antenna port Arrange in advance, can be one of port 7, port 8, port 9 or port 10.
Preferably, pre-coding matrix used in above-mentioned precoding are as follows: carry multiple PRB pairs of the PSS and/or SSS In mutiple antennas port in 1 antenna port DMRS used in pre-coding matrix.Than preferably, above-mentioned 1 antenna The DMRS of port is to have use in multiple PRB pairs, and pre-coding matrix used is identical.
When implementing, in order to improve the efficiency of data processing, above-mentioned downlink data includes user face data and control class letter It enables.
As another, preferably embodiment, receiving end determine that network side is the PRB pair of the transmission data of oneself distribution, If the PRB pair of above-mentioned transmission data, in the PRB pair for carrying above-mentioned PSS and/or SSS, receiving end is from above-mentioned transmission data PRB pair be it is middle receive oneself data, while receive the synchronization signal (PSS and/or SSS) in the PRB pairs of the transmission data and DMRS, and the synchronization signal (PSS and/or SSS) and DMRS received in the PRB pair using the transmission data simultaneously is data solution It adjusts.
Than preferably, can determine pre-coding matrix one of in the following way: (1) receiving end default is from above-mentioned PRB pair In the pre-coding matrix of pre-coding matrix and the DMRS received from above-mentioned PRB pair that uses of the PSS that receives and/or SSS It is identical；(2) antenna port that the receiving end PSS that receives from above-mentioned PRB pair of default and/or SSS is used with from above-mentioned PRB pair In the antenna port that uses of the DMRS that receives it is identical；(3) PSS and/or SSS received in OFDM symbol is defaulted in receiving end Precoding is carried out using the pre-coding matrix for the DMRS for being stopped transmission in the OFDM symbol.
Preferred embodiment two
This preferred embodiment provides the configuration and sending method of a kind of synchronization signal, realizes the transmission of synchronization signal, this Preferred embodiment describes the case where multi-antenna port.
In the preferred embodiment, base station side executes following steps: network side carries out precoding to PSS and/or SSS, so After send.Wherein, the pre-coding matrix that precoding uses for, carry PSS and/or SSS multiple PRB pairs in mutiple antennas end Pre-coding matrix used in the DMRS of at least two antenna port in mouthful.Wherein, the DMRS of at least two antenna port, There is use in the multiple PRB pair.
Preferably, pre-coding matrix used in the DMRS of at least two antenna port, in above-mentioned multiple PRB pairs Pre-coding matrix is identical.
As a preferably embodiment, in order to realize the compatibility of signal processing, which includes By the combination of at least two port in port 7, port 8, port 9, port 10.
It,, can be in different ways corresponding to different duplex modes in order to improve the accuracy of transmission when implementing PSS and/or SSS are handled.
Example 5: in FDD mode, when standard CP is configured, network side sends precoding processing on the symbol #6 of subframe #0 and #5 PSS, on the symbol #5 of subframe #0 and #5 send precoding processing SSS.
(2) in TDD mode, when standard CP is configured, network side sends precoding processing on the symbol #13 of subframe #0 and #5 SSS, on the symbol #2 of subframe #1 and #6 send precoding processing PSS.
Preferably, in example 5, corresponding to different duplex modes, above-mentioned subframe #0 or #5 can be handled as follows: In FDD mode and standard CP configuration, OFDM symbol #5 and #6 resource of the network side in the PRB pair of carrying PSS and/or SSS Middle stopping configuration sending DMRS；In TDD mode and standard CP configuration, OFDM symbol of the network side in the PRB pair of carrying SSS Stop configuration in number #13 resource and sends DMRS.
Example 6: in FDD mode or TDD mode, when standard CP is configured, network side is sent on the symbol #3 of subframe #0 and #5 Precoding processing PSS sends the SSS of precoding processing on the symbol #2 of subframe #0 and #5.
Example 7: under FDD mode or TDD mode, when standard CP is configured, network side is sent out on the symbol #8 of subframe #0 and #5 Precoding processing PSS is sent, the SSS of precoding processing is sent on the symbol #1 of subframe #0 and #5.
Example 8: in FDD mode, when standard CP is configured, network side sends precoding processing on the symbol #8 of subframe #0 and #5 PSS sends the SSS of precoding processing on the symbol #3 of subframe #0 and #5；In TDD mode, when standard CP is configured, network side exists The SSS that precoding processing is sent on the symbol #8 of subframe #0 and #5, sends precoding processing on the symbol #0 of subframe #1 and #6 PSS.
As another, preferably embodiment, receiving end determine that network side is the PRB pair of the transmission data of oneself distribution, If this states the PRB pair for sending data in the PRB pair of carrying PSS and/or SSS, receiving end is from the PRB pair of the transmission data The data of oneself are received, while receiving synchronization signal (PSS and/or SSS) and DMRS in the PRB pairs of the transmission data, and same When PRB pair using the transmission data in the synchronization signal (PSS and/or SSS) that receives and DMRS be data demodulation.
Than preferably, for receiving end, what the PSS and/or SSS received in above-mentioned PRB pair from port was used Pre-coding matrix is identical from the pre-coding matrix of the received DMRS in the port as in the PRB pair.
As another preferably embodiment, before carrying out precoding to PSS and/or SSS, further includes: will carry The subcarrier of PSS and/or SSS is grouped, and every group of subcarrier is sent using different antenna ports, and uses the day The corresponding pre-coding matrix of the DMRS of line end mouth sends PSS and/or SSS to the group and carries out precoding.Preferably, packet count is equal to Send the antenna port number that PSS and/or SSS is used.
Than that preferably, can be grouped using various ways.
Such as: mode one: being grouped with subcarrier number, and the subcarrier for carrying PSS and/or SSS is divided into multiple groups, wherein It is divided into one group including the subcarrier that subcarrier number is odd number, subcarrier number is that the subcarrier of even number is divided into one group；
Mode two: being grouped as unit of PRB pair, and the PRB pair for carrying PSS and/or SSS is divided into multiple groups.
In the preferred embodiment, correspond to the step of base station side executes, the side UE executes following steps: receiving end (UE) makes The PSS and/or SSS for being pre-coded processing are received from the PRB pair of distribution with 2 or 2 or more antenna ports, and for demodulating Downlink data in the PRB pair of distribution.
In order to improve the accuracy of demodulation, the PRB pair of above-mentioned distribution refers to that network side is used for transmission downlink for UE distribution The PRB pair of data or control signaling, and PSS and/or SSS is carried in the PRB pair.
It is received as preferably embodiment, an above-mentioned receiving end using single antenna port, wherein the single antenna port Arrange in advance, can be one of port 7, port 8, port 9 or port 10.
Preferably, pre-coding matrix used in above-mentioned precoding are as follows: carry multiple PRB pairs of the PSS and/or SSS In mutiple antennas port at least two antenna port DMRS used in pre-coding matrix.Than preferably, at least two The DMRS of antenna port has use in the multiple PRB pair, and pre-coding matrix used is identical.
When implementing, in order to improve the efficiency of data processing, above-mentioned downlink data includes: user face data and control class letter It enables.
As another, preferably embodiment, receiving end determine that network side is the PRB pair of the transmission data of oneself distribution, If the PRB pair of above-mentioned transmission data, in the PRB pair for carrying above-mentioned PSS and/or SSS, receiving end is from above-mentioned transmission data PRB pair be it is middle receive oneself data, while receive the synchronization signal (PSS and/or SSS) in the PRB pairs of the transmission data and DMRS, and the synchronization signal (PSS and/or SSS) and DMRS received in the PRB pair using the transmission data simultaneously is data solution It adjusts.Than preferably, receiving end, the pre-coding matrix that the PSS and/or SSS received in above-mentioned PRB pair from different port is used It is identical from the pre-coding matrix of the received DMRS of corresponding ports as in the PRB pair.
As another preferably embodiment, before carrying out precoding to PSS and/or SSS, further includes: will carry The subcarrier of PSS and/or SSS is grouped, and every group of subcarrier is sent using different antenna ports, and uses the day The corresponding pre-coding matrix of the DMRS of line end mouth sends PSS and/or SSS to the group and carries out precoding.Preferably, packet count is equal to Send the antenna port number that PSS and/or SSS is used.
Than that preferably, can be grouped using various ways.
Such as: mode one: being grouped with subcarrier number, and the subcarrier for carrying PSS and/or SSS is divided into multiple groups, wherein It is divided into one group including the subcarrier that subcarrier number is odd number, subcarrier number is that the subcarrier of even number is divided into one group；
Mode two: being grouped as unit of PRB pair, and the PRB pair for carrying PSS and/or SSS is divided into multiple groups.
Preferred embodiment three
This preferred embodiment provides a kind of synchronization signal and is used as the configuration of demodulated reference signal, sending method, this method Including: network side sends subframe in synchronization signal, and carries on the Physical Resource Block of synchronization signal, by primary synchronization signal and/or Secondary synchronization signal is mapped as the port of demodulated reference signal.
When implementing, synchronization signal can be mapped as demodulated reference signal in several ways.Such as main synchronization is believed Number and/or the secondary synchronization signal method that is mapped as demodulated reference signal include at least one of following manner:
Primary synchronization signal is mapped as some in demodulated reference signal port 7,8,9,10.
Secondary synchronization signal is mapped as some in demodulated reference signal port 7,8,9,10.
Certain two primary synchronization signal and secondary synchronization signal are mapped as in demodulated reference signal port 7,8,9,10.
Primary synchronization signal and secondary synchronization signal are mapped as some in demodulated reference signal port 7,8,9,10 simultaneously.
Wherein, receiving end determines primary synchronization signal, auxiliary based on the default configuration of instruction information or standard that network side is sent The port that synchronization signal uses.Preferred port 7 is primary synchronization signal when the default configuration；Preferred port 8 is secondary synchronization signal.
As a preferably embodiment, subframe is sent in above-mentioned synchronization signal, and carry the physics of synchronization signal Resource block, when being sent based on demodulated reference signal port, the RE that demodulated reference signal port occupies is for main or auxiliary synchronization The RE of signal, based on sequence used in the port or the corresponding sequence of secondary synchronization signal.Wherein, the demodulated reference signal end Mouth is one from port 7,8,9,10.
As another preferably embodiment, subframe is sent in above-mentioned synchronization signal, and carry the object of synchronization signal Manage resource block, when being sent based on demodulated reference signal port M and port N, the RE that demodulated reference signal port M is occupied be for Sequence used in the RE of primary synchronization signal (or secondary synchronization signal), the port M is that primary synchronization signal (or secondary synchronization signal) is right The sequence answered.The RE that demodulated reference signal port N is occupied is the RE for secondary synchronization signal (or primary synchronization signal), the port Sequence used in N is secondary synchronization signal (or primary synchronization signal) corresponding sequence.Wherein, M and N is selected from port 7,8,9,10 One is selected, and can be identical.
When implementing, in order to improve the precision of signal processing, when main and/or secondary synchronization signal is used as port M and/or port When the demodulated reference signal of N, subframe is sent in synchronization signal, and using identical between the Physical Resource Block of carrying synchronization signal Weight carries out precoding processing.
As another preferably embodiment, subframe is sent in synchronization signal, and carry the physical resource of synchronization signal On block, when single user is transmitted, the maximum number of layers that limitation dispatch user data is sent is no more than 2.Subframe is sent in synchronization signal, And on the Physical Resource Block of carrying synchronization signal, when multiuser multiplexing transmits, limiting each scheduling user's number of layers is 1, and point Not Ji Yu primary/secondary synchronization signal sent as demodulated reference signal port.
Corresponding in above preferred embodiment, network side indicates the end by the Downlink Control Information of down control channel The distribution condition of mouth and number of layers.Network side notifies UE, value information, port and the layer that PSS/SSS is used by high-level signaling Several distribution conditions.Enhance Physical Downlink Control Channel (ePDCCH) when sending in the PRB pair in carrying master or secondary synchronization signal When, the port numbers can arrange to solidify in advance.
Preferred embodiment four
The side UE (receiving end) that this preferred embodiment provides a kind of configuration that synchronization signal is used as demodulated reference signal connects Receiving processing method, this method corresponds to the network side of above preferred embodiment three, for receiving side, executes following behaviour Make: sending subframe in synchronization signal, and on the Physical Resource Block of carrying synchronization signal, terminal (receiving side or UE) is based on master And/or channel estimation needed for secondary synchronization signal progress data demodulation.
As a preferably embodiment, carried out needed for data demodulation with primary synchronization signal and/or secondary synchronization signal One of channel estimation at least following manner:
Main (or auxiliary) synchronization signal is used as to the channel estimation of demodulated reference signal port 7；
Auxiliary (or main) synchronization signal is used as to the channel estimation of demodulated reference signal port 8；
Main (or auxiliary) synchronization signal is used as to the channel estimation of demodulated reference signal port 7, by auxiliary (or main) synchronous letter Number it is used as the channel estimation of demodulated reference signal port 8；
Primary synchronization signal is used as the channel estimation of some in demodulated reference signal port 7,8,9,10；
Primary synchronization signal is used as the channel estimation of some in demodulated reference signal port 7,8,9,10；
Primary synchronization signal and secondary synchronization signal are used as to certain two port in demodulated reference signal port 7,8,9,10 Channel estimation；
Primary synchronization signal and secondary synchronization signal are used as some in demodulated reference signal port 7,8,9,10 simultaneously Channel estimation；
Wherein, receiving end determines primary synchronization signal, auxiliary based on the default configuration of instruction information or standard that network side is sent The port that synchronization signal uses.Preferred port 7 is primary synchronization signal when above-mentioned default configuration；Preferred port 8 is secondary synchronization signal.
As a preferably embodiment, subframe is sent in synchronization signal, and carry the Physical Resource Block of synchronization signal On, when based on demodulated reference signal port carry out channel estimation when, UE it is expected demodulated reference signal port occupy RE be for The RE of primary synchronization signal (or secondary synchronization signal), sequence used in the port are that primary synchronization signal (or secondary synchronization signal) is corresponding Sequence.Wherein, above-mentioned demodulated reference signal port is one from port 7,8,9,10.
As another preferably embodiment, subframe is sent in above-mentioned synchronization signal, and carry the object of synchronization signal Resource block is managed, when carrying out channel estimation based on demodulated reference signal port M and port N, UE potential solution demodulated reference signal end The RE that mouth M is occupied is the RE for primary synchronization signal (or secondary synchronization signal), and sequence used in the port M is primary synchronization signal (or secondary synchronization signal) corresponding sequence.The RE that demodulated reference signal port N is occupied is for secondary synchronization signal (or main synchronous letter Number) RE, sequence used in the port N is secondary synchronization signal (or primary synchronization signal) corresponding sequence.Wherein, M and N from One is selected in port 7,8,9,10, and can be identical.
Preferably, subframe is sent in above-mentioned synchronization signal, and on the Physical Resource Block of carrying synchronization signal, when UE is based on When main and/or secondary synchronization signal is used as the channel estimation of port M and/or port N, UE it is expected to demodulate ginseng on above-mentioned Physical Resource Block It is identical to examine the corresponding precoding weight of signal.Wherein, M and N selects one from port 7,8,9,10, and can be identical.
As a preferably embodiment, subframe is sent in above-mentioned synchronization signal, and carry the physics money of synchronization signal In source block, the number of layers of UE expected data transmission is less than or equal to 2.
Preferably, terminal (receiving end) receives Downlink Control Information by down control channel, and obtains number of layers and solution Adjust the usage mode of reference signal port；Or, network side notifies UE, value information that PSS/SSS is used, end by high-level signaling The distribution condition of mouth and the number of plies；Or, when sending ePDCCH in the PRB pair in carrying master or secondary synchronization signal, the port numbers It can arrange in advance.
Preferred embodiment five
This preferred embodiment provides the configuration and sending method of a kind of synchronization signal, realizes the transmission of synchronization signal, this Preferred embodiment describes the case where single antenna port.
In the preferred embodiment, network side carries out precoding to sent PSS, SSS or (PSS and SSS), then makes It is sent with single antenna port.The matrix used when above-mentioned carry out precoding is certain in multiple PRB pairs of carrying PSS and/or SSS Pre-coding matrix used in the DMRS of one antenna port；Wherein, the DMRS of certain above-mentioned 1 antenna port, the multiple There is configuration to use in PRB pair, and identical (the above-mentioned pre-coding matrix of the pre-coding matrix used in above-mentioned multiple PRB pairs It is equivalent with precoding weight).
As a preferably embodiment, for the PSS or SSS or PSS and SSS of the carry out precoding processing of transmission, One can be selected from following antenna ports 7, antenna port 8, antenna port 9, antenna port 10.Or it can in advance about Determine, such as network side and receiving end are arranged by standardization agreement using some in above-mentioned port.
It as another preferably embodiment, can also be configured by signaling, for example, network side is used in scheduling When the PRB pair for carrying PSS and/or SSS is receiving end, network side is notified that the antenna port that the PRB pair of receiving end scheduling uses Information and precoding matrix information, at this time according to the above-mentioned PSS and/or SSS allocating pre-coding matrix provided, antenna port and DMRS information, so that it may when knowing that PSS and/or SSS is transmitted, the antenna port and pre-coding matrix that use.
When implementing, when the PRB pair for the transmission data that network side is receiving end distribution is the PRB for carrying PSS and/or SSS Clock synchronization, receiving end receive the data of oneself from the PRB pair for sending data, while receiving the PRB pair for sending data In PSS and/or SSS, DMRS, and simultaneously using the PSS received and/or SSS and DMRS be data demodulation.At this point, It is received in the pre-coding matrix and the PRB pair that the PSS and/or SSS that receiving end default receives in the PRB pair are used DMRS pre-coding matrix it is identical.The receiving end PSS and/or SSS use that is received in the PRB pair of default with from described The antenna port that the DMRS received in PRB pair is used is identical.
Preferably, network side and receiving end are in the PRB pair of carrying PSS and/or SSS, when in OFDM symbol therein When DMRS is with PSS and/or SSS resource contention, network side stops sending DMRS, and receiving end thinks that network side does not send DMRS and exists In the resource.
Preferably, the PSS and/or SSS, DMRS joint that receiving end receives in the PRB pair of carrying PSS and/or SSS are used In demodulation user data and control signaling.Such as: the PSS and/or SSS can be regarded as the DMRS for being stopped transmission by receiving end Use it.It is specific to use, can only be used only with from the DMRS received in the PRB pair of carrying PSS and/or SSS in phase With the PSS and/or SSS of subcarrier, this part PSS and/or SSS are equal to stopping transmission DMRS at this time and use it.Or it will The PSS and/or SSS received is completely used for data demodulation.
Preferred embodiment six
This preferred embodiment provides the configuration and sending method of a kind of synchronization signal, realizes the transmission of synchronization signal, this Preferred embodiment describes the case where single antenna port.
In the preferred embodiment, network side carries out precoding to sent PSS or SSS or PSS and SSS, then makes It is sent with single antenna port.One in multiple PRB pairs of the matrix used when precoding to carry PSS and/or SSS Pre-coding matrix used in the DMRS of a antenna port.Wherein, the DMRS of 1 antenna port, in the multiple PRB pair In there is configuration to use, and the pre-coding matrix used in the multiple PRB pair is different.
For the above method, visited since the pre-coding matrix difference used in the multiple PRB pair necessarily will affect UE The performance of PSS and/or SSS is surveyed, but if the pre-coding matrix value relatively, for UE detects PSS and/or SSS The influence of performance also can be smaller, also possible implementation at this time.Joined at this point for UE using PSS and/or SSS and DMRS The performance for closing solution adjusting data is promoted, and network side can configure suitable pre-coding matrix above-mentioned multiple according to the actual situation In PRB pair, so that the demodulation performance of UE is promoted.
When implementing, the position for sending PSS and/or SSS can be determined according to system configuration, such as:
Mode one: for LTE FDD system, if configured using standard CP, symbol # of the network side in subframe #0 and #5 The PSS for being pre-coded processing, and/or the symbol #5 in subframe #0 and #5 are sent on 6 (symbol number in subframe is since #0) The upper SSS for sending precoding processing.The frequency domain of PSS and/or SSS is executed still according to existing LTE R8 agreement.It carries at this time Stop sending DMRS in symbol #5 and #6 in the PRB pair of PSS and/or SSS.For LTE TDD system, if using standard CP When configuration, network side sends the SSS of precoding processing, and/or the symbol in subframe #1 and #6 on the symbol #13 of subframe #0 and #5 The SSS of precoding processing is sent on number #2.It carries the DMRS in the symbol #13 in the PRB pair of PSS at this time to stop sending, carrying If being configured with DMRS originally in the PRB pair of SSS, equally it is also required to stop sending.
Mode two: in LTE FDD or TDD system, and when configuration standard CP, symbol of the network in subframe #0 and #5 (refers to OFDM symbol) precoding processing PSS is sent on #3, and/or precoding processing is sent on the symbol #2 of subframe #0 and #5 SSS.At this point for FDD system, DMRS is sent on the symbol #5 and #6 of the PRB pair of carrying PSS and/or SSS.For TDD system It unites and sends DMRS on the symbol #13 of the PRB pair of carrying SSS.
Mode three: in LTE FDD or TDD system, as configuration standard CP, symbol #8 of the network side in subframe #0 and #5 It is upper send precoding processing PSS, and/or on the symbol #1 of subframe #0 and #5 send precoding processing SSS.At this point, right In FDD system, network side sends DMRS on the symbol #5 and #6 of the PRB pair of carrying PSS and/or SSS.For TDD system net Network side sends DMRS in the symbol #13 of the PRB pair of carrying SSS.
Mode four: in LTE FDD system, configuration standard CP, network side is sent in advance on the symbol #8 of subframe #0 and #5 The PSS of coded treatment, and/or on the symbol #3 of subframe #0 and #5 send precoding processing SSS.At this time carrying PSS and/ Or DMRS is sent in the symbol #5 and #6 in the PRB pair of SSS.In LTE TDD system, configuration standard CP, network side is in subframe # The SSS of precoding processing is sent on the symbol #8 of 0 and #5, and/or sends precoding processing on the symbol #0 of subframe #1 and #6 PSS.At this point, sending DMRS in the symbol #13 in the PRB pair of carrying SSS.
Preferred embodiment seven
This preferred embodiment provides the configuration and sending method of a kind of synchronization signal, realizes the transmission of synchronization signal, this Preferred embodiment describes the case where single antenna port.The processing method of receiving end is described, receiving end includes in the present embodiment The equipment for receiving network side synchronization signal, such as: mobile phone, relay node, small cell etc..
In the present embodiment, receiving end receives the PSS and/or SSS that precoding processing is carried out in the PRB pair of distribution, is used in combination Downlink data in the PRB pair for demodulating the distribution.The PRB pair of distribution described here refers to that network side is being used for for UE distribution RPB pairs of downlink data or control signaling is transmitted, and has PSS and/or SSS configuration to send in the PRB pair.Wherein, data are Refer to that the data by PDSCH transmission, control signaling are primarily referred to as ePDCCH signaling.Receiving end is connect using single antenna port It receives, wherein single antenna port can arrange in advance, and specially port 7 or port 8 or port 9 or port 10.
In the present embodiment, the PSS and/or SSS for precoding processing are thought in receiving end, wherein used precoding Matrix is precoding square used in the DMRs of some antenna port in the multiple PRB pairs for carry the PSS and/or SSS Battle array, the DMRs of this port has in the PRB pair of carrying PSS and/or SSS to be used, and pre-coding matrix used is identical.
Preferably, receiving end is the PRB pair for sending downlink data oneself distributed according to network side, if the PRB pair It is the PRB pair for carrying the PSS and/or SSS, when receiving end receives downlink data from the PRB pair, while receives therein PSS and/or SSS, DMRS, and the use of the PSS and/or SSS, DMRS received is simultaneously downlink data demodulation.Wherein, receiving end Default the pre-coding matrix that uses from the PSS and/or SSS received in the PRB pair and is received from the PRB pair The pre-coding matrix of DMRS is identical, and antenna port is identical, and the OFDM symbol of PSS and/or SSS is carried in the PRB pair Stop sending DMRS.
Preferred embodiment eight
This preferred embodiment provides the configuration and sending method of a kind of synchronization signal, realizes the transmission of synchronization signal, this Preferred embodiment describes the case where sending PSS and/or SSS using 2 or 2 or more antenna ports.
Method in this preferred embodiment includes: that network side carries out precoding to PSS and/or SSS, is then sent, wherein Above-mentioned precoding uses certain 2 or 2 or more motions in multiple PRB pairs of the pre-coding matrix to carry PSS and/or SSS Pre-coding matrix used in the DMRS of port.Wherein, the DMRS of described certain 2 or 2 or more day ports, the multiple There is the pre-coding matrix used and in the multiple PRB pair identical in PRB pair.Wherein, described 2 or 2 with heaven Line end mouth is composed of port 7, port 8, port 9, the configuration of port 10.
For receiving end, what the PSS and/or SSS that determining (thinking) receives in the PRB pair from port were used Pre-coding matrix is identical from the pre-coding matrix of the received DMRS in the port as in the PRB pair.Such as receiving end is from institute It states in PRB pair, in the pre-coding matrix used from the PSS and/or SSS received in port 7 and the PRB pair from port 7 The DMRS received is identical using pre-coding matrix.
Precoding is carried out preferably for PSS and/or SSS, the subcarrier for carrying PSS and/or SSS can be divided Group, every group of subcarrier are sent using different antenna ports, and use the corresponding precoding of DMRS of the antenna port Matrix corresponds to the PSS sent in this group of subcarrier and/or SSS and carries out precoding.For being specifically grouped, will carrying PSS and/or The subcarrier of SSS is divided into multiple groups, and wherein subcarrier number is divided into one group for odd number, and subcarrier number is divided into one for even number Group.Or be grouped as unit of PRB pair, the PRB pair for carrying PSS and/or SSS is divided into multiple groups.The grouping, wherein The quantity of grouping is less than or equal to the antenna port quantity for sending PSS and/or using.
Preferably for more days ports PSS and/or SSS the case where, receiving end determine network side be oneself distribution hair Send the PRB pair of data, if the PRB pair is to carry the PSS and/or SSS, receiving end from the PRB pair received from Oneself data, while PSS and/or SSS, DMRS in the PRB pair are received, and use the PSS and/or SSS, DMRS simultaneously Solve adjusting data.
As another preferably embodiment, the case where for using mutiple antennas port to send PSS and/or SSS, under What the implementation in face also can be achieved on.
Network side carries out precoding to PSS and/or SSS, then sends, wherein the precoding use pre-coding matrix for Carry precoding square used in the DMRS of certain 2 or 2 or more motion ports in multiple PRB pairs of PSS and/or SSS Battle array.Wherein, the DMRS of described certain 2 or 2 or more day ports has in the multiple PRB pair and uses and described more Pre-coding matrix in a PRB pair is different.In this case, as the pre-coding matrix used in the multiple PRB pair Difference necessarily will affect UE detection PSS and/or SSS performances, but if the pre-coding matrix value relatively, for The influence that UE detects the performance of PSS and/or SSS also can be smaller, also possible implementation at this time.It is utilized at this point for UE The performance of PSS and/or SSS and DMRS joint demodulation data is promoted, and network side can configure suitably according to the actual situation Pre-coding matrix is in the multiple PRB pair, so that the demodulation performance of UE is promoted.
When implementing, the position for sending PSS and/or SSS can be determined according to system configuration, such as:
Mode one: for LTE FDD system, if configured using standard CP, symbol # of the network side in subframe #0 and #5 The PSS for being pre-coded processing, and/or the symbol #5 in subframe #0 and #5 are sent on 6 (symbol number in subframe is since #0) The upper SSS for sending precoding processing.The frequency domain of PSS and/or SSS is executed still according to existing LTE R8 agreement.It carries at this time Stop sending DMRS in symbol #5 and #6 in the PRB pair of PSS and/or SSS.For LTE TDD system, if using standard CP When configuration, network side sends the SSS of precoding processing, and/or the symbol in subframe #1 and #6 on the symbol #13 of subframe #0 and #5 The SSS of precoding processing is sent on number #2.It carries the DMRS in the symbol #13 in the PRB pair of PSS at this time to stop sending, carrying If being configured with DMRS originally in the PRB pair of SSS, equally it is also required to stop sending.
Mode two: in LTE FDD or TDD system, and when configuration standard CP, symbol of the network in subframe #0 and #5 (refers to OFDM symbol) precoding processing PSS is sent on #3, and/or precoding processing is sent on the symbol #2 of subframe #0 and #5 SSS.At this point for FDD system, DMRS is sent on the symbol #5 and #6 of the PRB pair of carrying PSS and/or SSS.For TDD system It unites and sends DMRS on the symbol #13 of the PRB pair of carrying SSS.
Mode three: in LTE FDD or TDD system, as configuration standard CP, symbol #8 of the network side in subframe #0 and #5 It is upper send precoding processing PSS, and/or on the symbol #1 of subframe #0 and #5 send precoding processing SSS.At this point, right In FDD system, network side sends DMRS on the symbol #5 and #6 of the PRB pair of carrying PSS and/or SSS.For TDD system net Network side sends DMRS in the symbol #13 of the PRB pair of carrying SSS.
Mode four: in LTE FDD system, configuration standard CP, network side is sent in advance on the symbol #8 of subframe #0 and #5 The PSS of coded treatment, and/or on the symbol #3 of subframe #0 and #5 send precoding processing SSS.At this time carrying PSS and/ Or DMRS is sent in the symbol #5 and #6 in the PRB pair of SSS.In LTE TDD system, configuration standard CP, network side is in subframe # The SSS of precoding processing is sent on the symbol #8 of 0 and #5, and/or sends precoding processing on the symbol #0 of subframe #1 and #6 PSS.At this point, sending DMRS in the symbol #13 in the PRB pair of carrying SSS.
In the present embodiment, for using 2 or 2 PSS and/or SSS with upper port transmission precoding, receiving end It handles as follows:
The antenna port of receiving end use (or passing through) 2 or 2 or more is from reception is pre-coded in the PRB pair of distribution The PSS and/or SSS of reason, and the downlink data in the PRB pair for demodulating the distribution.The PRB pair wherein distributed refers to network For the PRB pair that UE is distributed by downstream grants signaling, it is used for transmission downlink data, and has PSS and/or SSS configuration in the PRB pair It sends.It is described to refer to that antenna port is arranged in advance using 2 or 2 or more antenna ports, and be port 7, port 8, end Mouthfuls 9 and 2 or 2 combination of the above in port.The PSS and/or SSS of the precoding processing, precoding therein are made Pre-coding matrix is certain 2 or 2 or more antenna ports in the multiple PRB pairs for carry the PSS and/or SSS Pre-coding matrix used in DMRS.And the DMRS of described certain 2 or 2 or more antenna ports is in the multiple PRB pair In have use, and pre-coding matrix used is identical.
Preferably, downlink data includes user face data and control plane signaling.Receiving end is in above-mentioned PRB pair from different ends The pre-coding matrix that the PSS that receives of mouth and/or SSS are used in the PRB pair from the received DMRS's in corresponding port Pre-coding matrix is identical.For example, PSS and/or SSS that receiving end is received from the PRB pair using port 7 with use port 7 DMRS received from the PRB pair use identical pre-coding matrix.
As another preferably embodiment, if network side is carried out for carrying the subcarrier of PSS and/or SSS Grouping, difference group send PSS and/or SSS using a port and corresponding pre-coding matrix, and receiving end is then needed according to agreement Subcarrier grouping principle, determine each group of subcarrier and port that each group of subcarrier uses and corresponding pre- Then encoder matrix is demodulating downlink data therein in conjunction with the DMRS in the PRB pair.
As another preferably embodiment, if network side has carried out point for carrying the PRB pair of PSS and/or SSS Group, difference group send PSS and/or SSS using a port and corresponding pre-coding matrix, and receiving end is then needed according to agreement PRB pair group forming criterion determines each group of PRB pair and port that each group of PRB pair uses and corresponding precoding Then matrix is demodulating downlink data therein in conjunction with the DMRS in the PRB pair.
Preferred embodiment nine
This preferred embodiment provides a kind of synchronization signal and is used as the configuration of demodulated reference signal, sending method.
It in the preferred embodiment, this method comprises: network side sends subframe in synchronization signal, and is synchronized in carrying PSS (primary synchronization signal) and/or SSS (secondary synchronization signal) are mapped as demodulation reference to upper by the Physical Resource Block (PRB) of signal The port of signal.UE in this way can handle the PSS/SSS signal of network side transmission according to the port of demodulated reference signal, from And the data in the PRB pair, including control signaling or user data are demodulated using it.
Implement when, PSS and/or SSS are mapped as demodulated reference signal, can in several ways, such as: network side PSS is mapped as some in demodulated reference signal port 7,8,9,10, is for example, about set to network side and is mapped as demodulating by PSS Reference signal port 7.Or SSS is mapped as some in demodulated reference signal port 7,8,9,10, for example, agreement will SSS is mapped as demodulated reference signal port 8.Or PSS and SSS are mapped as in the port 7,8,9,10 of demodulated reference signal Certain two, for example, about two antenna ports of settled selection when, PSS and SSS are mapped as demodulated reference signal port 7 and port 8. Or PSS and SSS is mapped as some in demodulated reference signal port 7,8,9,10 simultaneously, such as agreement is by PSS and SSS It is mapped as demodulated reference signal port 7 simultaneously.The default configuration of instruction information or standard that receiving end is sent based on network side is (i.e. Agreement in advance) determine the port that PSS, SSS are used.When the default configuration, preferred port 7 is that PSS maps demodulated reference signal； Preferred port 8 is that SSS maps demodulated reference signal.
Preferably, network side sends subframe in synchronization signal, and in the PRB pair of carrying synchronization signal, when based on demodulation ginseng When examining signal port transmission PSS/SSS, the RE (resource unit) that demodulated reference signal port occupies is for PSS or SSS signal RE, all sequences in above-mentioned port be the corresponding sequence of PSS or SSS.Wherein, above-mentioned demodulated reference signal port be 7,8,9, One in 10.For example, about fixed end mouthful 7.
As another, preferably embodiment, network side synchronization signal send subframe, and the PRB pair of carrying synchronization signal In, when sending PSS/SSS based on demodulated reference signal port M and port N, the RE that demodulated reference signal port M is occupied is to use In the RE of PSS (or SSS), sequence used in above-mentioned port M is PSS (or SSS) corresponding sequence.Demodulated reference signal port N The RE of occupancy is the RE for SSS (or PSS), and sequence used in above-mentioned port N is SSS (or PSS) corresponding sequence.Wherein, M One selected from port 7,8,9,10 with N, and can be identical.
Preferably, when main and/or secondary synchronization signal is used as the demodulated reference signal of port M and/or port N, in synchronization Signal sends subframe, and carries out precoding processing using identical weight between the PRB pair of carrying synchronization signal.
Preferably, when sending subframe in synchronization signal, and on the PRB pair of carrying synchronization signal, but being used for transmission, limitation is adjusted Maximum number of layers of the degree for data to be sent is no more than 2.Subframe is sent in synchronization signal, and on the PRB pair of carrying synchronization signal, When multiuser multiplexing transmits, limiting each scheduling user's number of layers is 1, and is based respectively on primary/secondary synchronization signal as demodulation ginseng Signal port is examined to be sent.
The end is indicated by the Downlink Control Information of down control channel as preferably embodiment, a network side The distribution condition of mouth and number of layers；Or, network side notifies UE by high-level signaling, value information that PSS/SSS is used, port and The distribution condition of the number of plies；Or, when carrying is main or the PRB pair of secondary synchronization signal in send ePDCCH when, the port numbers can be with Agreement solidification in advance.In order to reduce the number of UE retrieval ePDCCH.
In the present embodiment, the processing mode that demodulated reference signal is made using synchronization signal in the side UE is as follows:
Mode one: synchronization signal send subframe, and carry synchronization signal PRB pair on, receiving end be based on PSS and/or Channel estimation needed for SSS carries out data demodulation.Specifically, channel estimation needed for carrying out data demodulation with PSS and/or SSS For PSS (or SSS) to be used as to the channel estimation of demodulated reference signal port 7 (or port 8 or port 9 or port 10).Or SSS is used as to the channel estimation of demodulated reference signal port 8 (or port 7 or port 9 or port 10).Or it will master (or auxiliary) Synchronization signal is used as the channel estimation of demodulated reference signal port 7, and auxiliary (or main) synchronization signal is used as demodulation reference letter The channel estimation of number port 8.
Mode two: the channel of some that primary synchronization signal is used as in demodulated reference signal port 7,8,9,10 is estimated Meter.Or primary synchronization signal and secondary synchronization signal are used as to the letter of certain two port in demodulated reference signal port 7,8,9,10 Road estimation.Or primary synchronization signal and secondary synchronization signal are used as to some in demodulated reference signal port 7,8,9,10 simultaneously Channel estimation.Wherein, receiving end based on the default configuration of instruction information or standard that network side is sent determine primary synchronization signal, The port that secondary synchronization signal uses.Preferred port 7 is primary synchronization signal when the default configuration；Synchronous letter supplemented by preferred port 8 Number.
Mode three: subframe is sent in synchronization signal, and on the PRB pair of carrying synchronization signal, when based on demodulated reference signal When port carries out channel estimation, UE it is expected that the RE that demodulated reference signal port occupies is for primary synchronization signal (or auxiliary synchronous letter Number) RE, sequence used in the port is primary synchronization signal (or secondary synchronization signal) corresponding sequence.Wherein, the demodulation Reference signal port is one from port 7,8,9,10.Such as port 7.
Mode four: subframe is sent in the synchronization signal, and carries the PRB pair of synchronization signal, when based on demodulation reference When signal port M and port N carries out channel estimation, the RE that UE potential solution demodulated reference signal port M is occupied is for main synchronization Sequence used in the RE of signal (or secondary synchronization signal), the port M is primary synchronization signal (or secondary synchronization signal) corresponding sequence Column.The RE that demodulated reference signal port N is occupied is RE for secondary synchronization signal (or primary synchronization signal), used in the port N Sequence be secondary synchronization signal (or primary synchronization signal) corresponding sequence.Wherein, M and N selects one from port 7,8,9,10 It is a, and can be identical.
Mode five: sending subframe in the synchronization signal, and carries on the PRB pair of synchronization signal, when UE is based on advocating peace/ Or when channel estimation of the secondary synchronization signal as port M and/or port N, UE it is expected demodulated reference signal pair on the resource block The precoding weight answered is identical.Wherein, M and N selects one from port 7,8,9,10, and can be identical.
As a preferably embodiment, subframe is sent in the synchronization signal, and carry the PRB pair of synchronization signal On, the number of layers of UE expected data transmission is less than or equal to 2；Or, receiving end receives Downlink Control Information by down control channel, And obtain the usage mode of number of layers and demodulated reference signal port.Or network side notifies UE, PSS/SSS to make by high-level signaling The distribution condition of value information, port and the number of plies；Or, being sent when in the PRB pair in carrying master or secondary synchronization signal When ePDCCH, the port numbers can arrange to solidify in advance.
Preferred embodiment ten
In the present embodiment, a kind of transmission PSS and/or SSS is provided.This method is as follows: network side is matched in new carrier wave It sets to configure in following manner and sends PSS and/or SSS.
In the preferred embodiment, network side configuration PSS and/or SSS use pre-coding matrix identical with DMRS, and make With antenna port 7 (or port 8 or port 9 or port 10) send the PSS handled using the pre-coding matrix and/or SSS and DMRS.Wherein the DMRS has use in the PRB pair of carrying PSS and/or SSS, and pre-coding matrix is identical.
For example, network side and UE agreement be using fixed antenna port, such as agreement is using being fixed as (or the port 8 of port 7 Or port 9 or port 10).Network side sends PSS and/or SSS using port 7 (or port 8 or port 9 or port 10), and right Precoding processing is used in PSS and/or SSS, used pre-coding matrix is the pre-coding matrix of the corresponding DMRS in port 7. The corresponding position the PSS and/or SSS refers to, PSS specified in LTE R11 (identical as R8, R9 and R10 version) and/or The position of SSS mapping can specifically refer to 36.211 agreement of LTE, and repeats no more herein.
When implementing, it is preferable that network side determines the port number and port numbers that DMRS is used in intermediate 6 RBs, when true Determining port number is 1, port numbers 7, then network side then just uses the DMRS of port 7 corresponding pre- PSS and/or SSS Encoder matrix carries out precoding processing, then using PSS and/or SSS after the transmission of port 7 precoding processing.For FDD, at this time PSS and/or SSS conflicts in the OFDM symbol 5,6 (from 0 coding) of subframe #0 and #5 with DMRS, does not retransmit OFDM symbol at this time DMRS on numbers 5,6, but send PSS the and/or SSS data of precoding processing.Arrange to make in advance with network side in receiving end Precoding processing is carried out with single antenna port and use pre-coding matrix identical with port DMRS, therefore receiving end can be by It is handled according to following mode.According to different purposes, when receiving end is divided into cell searching synchronization, when receiving solution adjusting data.
Preferably for cell searching, the UE of synchronization, legacy version UE (assuming that UE can access new carrier wave) is still according to original Mode receive PSS and/or SSS, under original mode, UE do not know which specifically used port of network side send PSS and/or SSS's, so all single ports can only be soundd out one by one to receive, it is clear that be unfavorable for UE and receive PSS and/or SSS.When UE exploration makes When receiving PSS and/or SSS with port 7, UE can receive the PSS/SSS for being pre-coded processing, but since cell searches element, same It walks and carries out relevant operation only for PSS and/or SSS sequence to determine whether synchronous, because precoding processing will not influence The judgement of the relevant operation of PSS and/or SSS sequence.So will not influence the work of legacy version UE.For new version UE, only need PSS and/or SSS sequence received according to the port 7 of agreement and do relevant operation, judge whether to synchronize, do not need to sound out again Other ports are received, in this case, are received convenient for UE.
The UE for being used to solve adjusting data for receiving PSS and/or SSS, UE receive PSS and/or SSS according to port 7 is about scheduled on, Then the PSS received and/or SSS is subjected to solution pre-coding matrix processing, is then used for corresponding number with the remaining DMRS According to demodulation, detailed process with directly use DMRS it is identical, only need to regard as PSS and/or SSS at this time DMRS processing.
Preferred embodiment 11
In the present embodiment, a kind of transmission PSS and/or SSS is provided.This preferred embodiment is described using 2 days Line end mouth sends the case where PSS and/or SSS, and this method is as follows:
When network side is determined using two ports transmission PSS and/or SSS, network side will carry PSS and/or SSS data Subcarrier grouping is one antenna port of each group of sub-carrier configuration, and uses the antenna port of this group of sub-carrier configuration The pre-coding matrix of DMRS carries out precoding processing for PSS the and/or SSS data being carried on this group of subcarrier, then makes The PSS and/or SSS for being pre-coded processing are sent with the antenna port of each group of configuration.Wherein carry PSS and/or SSS data Subcarrier is specifically in the related protocol of the reference LTE (subcarrier maps of PSS and/or SSS in TS 36.211, LTE R8~R11 Position is all identical), which is not described herein again.
Preferably, candidate antenna port is port 7, port 8, port 9 and port 10.Wherein it is possible to above-mentioned sub- load Wave is grouped, it is proposed that when being divided into 2 groups or 4 groups, such as dividing 2 groups, is divided into odd number group and even number set according to subcarrier number.
For example, such as from about fixed end mouthful 7 and port 8 is sent when network side will use two antenna ports to send PSS and/or SSS PSS and/or SSS, network side will carry the subcarrier of PSS and/or SSS according to number according to the odd, even number of the number of subcarrier It is divided into 2 groups, and each group of configuration uses a port, such as odd number group to use port 7, even number set uses port 8, and is every PSS the and/or SSS data carried in one group of subcarrier use the pre-coding matrix of the DMRS of this group of corresponding ports.Then pre- PSS and/or SSS data are sent in corresponding subcarrier using corresponding port after coded treatment.
When implementing, network side determines the port number and port numbers that DMRS is used in intermediate 6 RBs, when determining port Quantity is 2, port numbers 7,8, and the subcarrier for carrying PSS and/or SSS is divided into odd number group and even number according to number by network side Group, odd number group are sent using port 7, and even number set is sent using port 8, and the PSS that is carried in odd number group subcarrier and/or SSS data carry out precoding processing using the DMRS pre-coding matrix of the corresponding port 7 of odd number group, carry in even number set subcarrier PSS and/or SSS data using the corresponding port 8 of even number set DMRS pre-coding matrix carry out precoding processing, then use PSS and/or SSS data that port 7, port 8 send that treated respectively.For FDD, PSS and/or SSS and DMRS are in son at this time Conflict in the OFDM symbol 5,6 (from 0 number) of frame #0 and #5, does not retransmit the DMRS in OFDM symbol 5,6 at this time, but send PSS the and/or SSS data of precoding processing.Receiving end and network side arrange in advance using 2 antenna ports transmission PSS and/or SSS, and precoding processing is carried out using the pre-coding matrix of the corresponding DMRS in port, therefore receiving end can be according to following side Formula processing.According to different purposes, receiving end is divided into cell searching, synchronizes purpose, and receives solution adjusting data purpose.
PSS and/or SSS data are received using port 7 and port 8 for new version UE, UE, then according to prior agreement , PSS the and/or SSS data in the subcarrier that number is odd number are solved using the pre-coding matrix of the corresponding DMRS in port 7 Precoding processing, PSS the and/or SSS data in the subcarrier that number is even number use the precoding of the corresponding DMRS in port 8 Matrix does solution precoding processing.It can also will be in the PSS and/or SSS and RB in the subcarrier of odd number in OFDM symbol 12,13 DMRS joins together to do the demodulation of data.Wherein, specific demodulating process is demodulated with directly using DMRS identical, is only needed at this time Regard PSS and/or SSS data as DMRS processing.
Preferred embodiment 12
In the present embodiment, a kind of method for sending PSS and/or SSS is provided.In the preferred embodiment, network side Arrange with receiving end, synchronization signal is sent using port 7 and port 8, and this method is as follows: network side sends subframe in synchronization signal In, and on the PRB pair of carrying PSS/SSS signal, PSS and SSS are each mapped to the port 7 and port of demodulated reference signal It 8 and sends.Meanwhile network side is also to send DMRS using port 7 and port 8 in the PRB pair.PSS and SSS is carried at this time PRB pair between using identical weight carry out precoding processing.The weight is identical as the weight of DMRS in the PRB pair.
In the present embodiment, default PSS and SSS in receiving end uses port 7 and port 8 to send respectively, and by PSS and Channel estimation of the SSS as demodulated reference signal port 7 and port 8.It is expected what (thinking) demodulated reference signal occupied in receiving end RE is the RE of PSS and SSS, and the sequence used is the corresponding sequence of PSS and SSS.
In the present embodiment, receiving end will be from the PSS and SSS and the PRB pair received in port 7 and port 8 The DMRS joint that port 7 and port 8 receive is used for channel estimation.Receiving end default port 7 and PSS in port 8 and SSS points The weight that the port 7 and DMRS in port 8 not in the PRB pair is used is identical.
Preferred embodiment 13
In the present embodiment, a kind of method for sending PSS and/or SSS is provided.In the preferred embodiment, network side To arrange with receiving end, synchronization signal is sent using port 7, this method comprises: network side is sent in subframe in synchronization signal, and On the PRB pair for carrying PSS/SSS signal, PSS and SSS is mapped as the port 7 of demodulated reference signal simultaneously and is sent.Meanwhile Network side is also to send DMRS using port 7 in the PRB pair.It is carried between the PRB pair of PSS and SSS at this time using identical Weight carry out precoding processing.The weight is identical as the weight of DMRS of the PRB pair middle port 7.
In the present embodiment, default PSS and SSS in receiving end uses port 7 to send respectively, and using PSS and SSS as solution Adjust the channel estimation of reference signal port 7.The RE that the RE that (thinking) demodulated reference signal occupies is PSS and SSS it is expected in receiving end, And the sequence used is the corresponding sequence of PSS and SSS.
In the present embodiment, receiving end will connect from the PSS and SSS received in port 7 and the port 7 in the PRB pair The DMRS joint received is for channel estimation.PSS and SSS in receiving end default port 7 is respectively at the port in the PRB pair The weight that DMRS in 7 is used is identical.
It should be noted that in view of the definition in current agreement for the DMRS port of demodulation PDSCH is antenna port 7, antenna port 8, antenna port 9, antenna port 10 are defined as antenna port 107, day for the DMRS port of demodulation ePDCCH Line end mouth 108, antenna port 109, antenna port 110.So being transmitted according in the PRB pair of carrying PSS and/or SSS PDSCH or ePDCCH selects corresponding antenna port collection.The application illustrates by taking the corresponding DMRS port definition of PDSCH as an example.
Through the foregoing embodiment, processing method, apparatus and system, channel estimation methods and the dress of synchronization signal are provided It sets, by using precoding processing for PSS and/or SSS, enables and PSS and/or SSS and carry PSS's and/or SSS DMRS in PRB pair combines for solving adjusting data, improves the data demodulation performance in the PRB pair, and for new carrier wave, When new carrier wave destroys the DMRS in the OFDM symbol clashed with PSS and/or SSS in 6 intermediate PRB pairs, using this PSS the and/or SSS sending method provided is provided, can solve asking for the decline of demodulation performance caused by as destroying part DMRS Topic.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (25)

1. a kind of sending method of synchronization signal characterized by comprising
Network side carrying primary synchronization signal PSS and/or secondary synchronization signal SSS subcarrier or Physical Resource Block in, using with The identical antenna port of the antenna port of demodulated reference signal DMRS in the subcarrier or Physical Resource Block sends the PSS And/or the SSS.
2. the method according to claim 1, wherein the network side is in the son for carrying the PSS and/or SSS In carrier wave or Physical Resource Block, day identical with the antenna port of the DMRS in the subcarrier or Physical Resource Block is used It includes following one that line end mouth, which sends the PSS and/or SSS:
The PSS is mapped as one of following DMRS antenna port on the subcarrier or Physical Resource Block by the network side Signal:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10；
The SSS is mapped as one of following DMRS antenna port on the subcarrier or Physical Resource Block by the network side Signal:
The antenna port 7, the antenna port 8, the antenna port 9, the antenna port 10；
The PSS and the SSS are mapped as following DMRS antenna on the subcarrier or Physical Resource Block by the network side The signal of one of port, or the signal of two antenna ports being mapped as in following DMRS antenna port:
The antenna port 7, the antenna port 8, the antenna port 9, the antenna port 10.
3. the method according to claim 1, wherein the network side directly or indirectly indicates described in receiving end Default antenna port corresponding to primary synchronization signal and the secondary synchronization signal.
4. according to the method described in claim 3, it is characterized in that, the corresponding default antenna port of the primary synchronization signal is day Line end mouth 7, the corresponding default antenna port of the secondary synchronization signal are antenna port 8；Or the primary synchronization signal is corresponding Default antenna port is antenna port 8, and the corresponding default antenna port of the secondary synchronization signal is antenna port 7.
5. the method according to claim 1, wherein in the sub- load for carrying the PSS and/or SSS On wave or Physical Resource Block, when being used as the reference signal of DMRS antenna port with the PSS and/or SSS, the antenna of the DMRS The occupied RE in port is the resource unit RE that the PSS and/or SSS is occupied, and, the antenna port of the DMRS is made Sequence is the sequence that the PSS and/or the SSS are used, and the antenna port of the DMRS is one of the following: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
6. the method according to claim 1, wherein in the physical resource for carrying the PSS and/or SSS On block, when the PSS and/or the SSS are used as DMRS antenna ports M, the reference signal of antenna port N, the DMRS antenna The RE that port M is occupied is the resource unit RE that the PSS or SSS is occupied, and sequence used in the antenna ports M is institute State sequence used in PSS or the SSS；
The RE that the DMRS antenna port N is occupied is the resource unit RE that the PSS or SSS is occupied, the antenna ports M Used sequence is sequence used in the PSS or SSS；
The DMRS antenna ports M and DMRS antenna port N are one of the following: antenna port 7, antenna port 8, antenna port 9, the sequence that antenna port 10, the PSS or the SSS are used is sequence used in the DMRS antenna ports M.
7. the method according to claim 1, wherein the PSS and/or SSS is used as the DMRS antenna When the DMRS signal of port M and/or the antenna port N, the subcarrier or physics of the PSS and/or the SSS are carried Precoding processing is carried out using identical weight between resource block.
8. the method according to claim 1, wherein in the sub- load for carrying the PSS and/or SSS On wave or Physical Resource Block,
In single user transmission, the maximum number of layers that dispatch user data is sent is less than or equal to 2；
In multiuser multiplexing transmission, the number of layers that dispatch user data is sent is 1, and the data of multiuser multiplexing transmission It is sent based on the PSS or SSS as antenna DMRS antenna port.
9. according to the method described in claim 8, it is characterized in that,
The network side indicates the distribution condition of the DMRS antenna port and the number of layers by down control channel；
Or
The network side notifies receiving end, value information that the PSS or the SSS are used, the DMRS by high-level signaling The distribution condition of antenna port and the number of layers；Or
Enhancing physical down control letter is sent in the subcarrier or Physical Resource Block for carrying the PSS and/or SSS When road, the antenna end slogan is preset.
10. method according to any one of claim 1 to 9, which is characterized in that
The antenna port is the DMRS antenna port of standardization agreement agreement；
The antenna port for sending the PSS is identical as the antenna port for sending the SSS；
The antenna port for sending the PSS is different from the antenna port for sending the SSS；Alternatively,
The antenna port of the DMRS is to be arranged by standardization agreement and is the institute where the PSS and/or SSS State one in DMRS antenna port used in subcarrier or Physical Resource Block.
11. a kind of method of reseptance of synchronization signal characterized by comprising
Receiving end carrying primary synchronization signal PSS and/or secondary synchronization signal SSS subcarrier or Physical Resource Block in, using with The identical antenna port of the antenna port of demodulated reference signal DMRS in the subcarrier or Physical Resource Block receives the PSS And/or the SSS.
12. according to the method for claim 11, which is characterized in that carrying the PSS and/or SSS in the receiving end Subcarrier or Physical Resource Block in, using identical as the antenna port of the DMRS in the subcarrier or Physical Resource Block Antenna port receive the PSS and/or SSS after, the method also includes following one:
The receiving end carries out the channel estimation of one of following DMRS antenna port: antenna port 7, antenna end using the PSS Mouth 8, antenna port 9, antenna port 10；
The receiving end carries out the channel estimation of one of following DMRS antenna port: the antenna port 7, institute using the SSS State antenna port 8, the antenna port 9, the antenna port 10；
The receiving end carries out the channel estimation of one of following DMRS antenna port using the PSS and SSS, or following The channel estimation of two antenna ports in DMRS antenna port: the antenna port 7, the antenna port 8, the antenna end Mouth 9, the antenna port 10；
The receiving end carries out the channel estimation of the antenna port 7 using the PSS or the SSS；
The receiving end carries out the channel estimation of the antenna port 8 using the PSS or the SSS；
The receiving end carries out the channel estimation of the antenna port 7 using the PSS or the SSS, and using the PSS or The SSS carries out the channel estimation of the antenna port 8.
13. according to the method for claim 12, which is characterized in that the receiving end directly or indirectly refers to according to network side Show and determines the primary synchronization signal and the corresponding default antenna port of the secondary synchronization signal.
14. according to the method for claim 13, which is characterized in that the corresponding default antenna port of the primary synchronization signal is Antenna port 7, the corresponding default antenna port of the secondary synchronization signal are antenna port 8；Or the primary synchronization signal is corresponding Default antenna port be antenna port 8, the corresponding default antenna port of the secondary synchronization signal is antenna port 7.
15. according to the method for claim 11, which is characterized in that in the son for carrying the PSS and/or SSS On carrier wave or Physical Resource Block, when carrying out channel estimation using the antenna port of DMRS, the day of the desired DMRS in receiving end The occupied RE of line end mouth is the resource unit RE that the PSS and/or SSS is occupied, and, the antenna port institute of the DMRS The sequence used is the sequence that the PSS and/or the SSS are used, and the antenna port of the DMRS is one of the following: antenna end Mouth 7, antenna port 8, antenna port 9, antenna port 10.
16. according to the method for claim 11, which is characterized in that in the son for carrying the PSS and/or SSS On carrier wave or Physical Resource Block, when carrying out channel estimation using DMRS antenna ports M and DMRS antenna port N, described DMRS days The RE that line end mouth M is occupied is the resource unit RE that the PSS or SSS is occupied, and sequence used in the antenna ports M is Sequence used in the PSS or SSS；
The RE that the DMRS antenna port N is occupied is the resource unit RE that the PSS or SSS is occupied, the antenna ports M Used sequence is sequence used in the PSS or SSS；
The sequence that the PSS or the SSS are used is sequence used in the DMRS antenna ports M, the DMRS antenna end Mouth M and DMRS antenna port N is one of the following: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
17. according to the method for claim 11, which is characterized in that described in being carried out using the PSS and/or SSS When DMRS antenna ports M and the channel estimation of the antenna port N, receiving end expectation carries the PSS and/or described The corresponding precoding weight of DMRS on the subcarrier or Physical Resource Block of SSS is identical.
18. according to the method for claim 11, which is characterized in that in the son for carrying the PSS and/or SSS On carrier wave or Physical Resource Block,
In single user transmission, the maximum number of layers that dispatch user data is sent is less than or equal to 2；
In multiuser multiplexing transmission, the number of layers that dispatch user data is sent is 1, and the data of multiuser multiplexing transmission It is sent based on the PSS or the SSS as DMRS antenna port.
19. according to the method for claim 18, which is characterized in that
The receiving end obtains the DMRS antenna port and described by receiving the Downlink Control Information of down control channel The distribution condition of number of layers；Or
The receiving end known by high-level signaling, value information that the PSS or the SSS are used, the DMRS antenna end The distribution condition of mouth and the number of layers；Or
Enhancing physical down control letter is sent in the subcarrier or Physical Resource Block for carrying the PSS and/or SSS When road, the antenna end slogan is preset.
20. method described in any one of 1 to 19 according to claim 1, which is characterized in that
The antenna port is the DMRS antenna port of standardization agreement agreement；
The antenna port for sending the PSS is identical as the antenna port for sending the SSS；
The antenna port for sending the PSS is different from the antenna port for sending the SSS；Alternatively,
The antenna port of the DMRS is to be arranged by standardization agreement and is the institute where the PSS and/or SSS State one in DMRS antenna port used in subcarrier or Physical Resource Block.
21. a kind of sending device of synchronization signal is applied to network side characterized by comprising
First mapping block, for the subcarrier or physical resource in carrying primary synchronization signal PSS and/or secondary synchronization signal SSS In block, antenna port identical with the antenna port of demodulated reference signal DMRS in the subcarrier or Physical Resource Block is used Send the PSS and/or SSS.
22. device according to claim 21, which is characterized in that
The antenna port is the DMRS antenna port of standardization agreement agreement；
The antenna port for sending the PSS is identical as the antenna port for sending the SSS；
The antenna port for sending the PSS is different from the antenna port for sending the SSS；Alternatively,
The antenna port of the DMRS is to be arranged by standardization agreement and is the institute where the PSS and/or SSS State one in DMRS antenna port used in subcarrier or Physical Resource Block.
23. a kind of reception device of synchronization signal is applied to receiving end characterized by comprising
Third receiving module, for the subcarrier or physical resource in carrying primary synchronization signal PSS and/or secondary synchronization signal SSS In block, antenna port identical with the antenna port of demodulated reference signal DMRS in the subcarrier or Physical Resource Block is used Receive the PSS and/or SSS.
24. device according to claim 23, which is characterized in that
The antenna port is the DMRS antenna port of standardization agreement agreement；
The antenna port for sending the PSS is identical as the antenna port for sending the SSS；
The antenna port for sending the PSS is different from the antenna port for sending the SSS；Alternatively,
The antenna port of the DMRS is to be arranged by standardization agreement and is the institute where the PSS and/or SSS State one in DMRS antenna port used in subcarrier or Physical Resource Block.
25. a kind of processing system of synchronization signal, characterized by comprising: the synchronization signal according to claim 21 or 22 Sending device and the synchronization signal according to claim 23 or 24 reception device.
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