CN104113387A - Processing method, device and system of synchronous signals, channel estimation method and device - Google Patents

Processing method, device and system of synchronous signals, channel estimation method and device Download PDF

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Publication number
CN104113387A
CN104113387A CN201310138436.2A CN201310138436A CN104113387A CN 104113387 A CN104113387 A CN 104113387A CN 201310138436 A CN201310138436 A CN 201310138436A CN 104113387 A CN104113387 A CN 104113387A
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port
sss
pss
dmrs
prb
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CN104113387B (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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Priority to CN201310138436.2A priority Critical patent/CN104113387B/en
Priority to CN201811643467.2A priority patent/CN109547081B/en
Priority to PCT/CN2014/075609 priority patent/WO2014169839A1/en
Publication of CN104113387A publication Critical patent/CN104113387A/en
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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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a processing method, device and system of synchronous signals, a channel estimation method and a channel estimation device. The processing method of the synchronous signals includes the following steps that: a network side determines a first pre-coding matrix which is used by demodulation reference signals (DMRS) of one or more antenna ports of a plurality of physical resource blocks (PRB) which carry primary synchronization signals (PSS) and/or secondary synchronization signals (SSS), wherein the first pre-coding matrix is used in the plurality of physical resource blocks (PRB) respectively; and the network side uses the first pre-coding matrix to pre-code the primary synchronization signals (PSS) and/or secondary synchronization signals (SSS). With the processing method, device and system of the synchronous signals, the channel estimation method and device of the invention adopted, the demodulation performance of data can be improved.

Description

The processing method of synchronizing signal, Apparatus and system, channel estimation methods and device
Technical field
The present invention relates to the communications field, in particular to processing method, Apparatus and system, channel estimation methods and the device of synchronizing signal.
Background technology
Long Term Evolution (Long Term Evolution, referred to as LTE) the research in version R11 stage in, on the basis of multi-carrier polymerizing technology, again further for frequency spectrum resource utilization rate, network energy-saving, and the interference inhibition aspect between community has proposed new demand.In order to realize this demand, new carrier type (New Carrier Type, referred to as NCT) (new carrier wave) has been proposed.By means of carrier aggregation technology, apply, new carrier wave has a salient feature, does not need to consider backwards compatibility exactly when design, can apply more new technology therein.For example, in LTE R11, for new carrier wave, be defined as, need and at least one compatible carrier wave pairing operation (also referred to as carrying out the operation of carrier aggregation mode with a compatible carrier wave), in new carrier wave, do not configure cell reference signals (the Cell-specific Reference Signals of LTE R8, be called for short CRS), to avoid adjacent cell, at the serious CRS of cell edge, disturb, particularly under heterogeneous network (HETerogeneous NETwork, HetNet) scene, the CRS between macrocell and Microcell disturbs.In the discussion of LTE R11, in order further to promote the use scenes of new carrier wave, the new carrier wave of independent operation has also been proposed, this stylish carrier wave possesses the ability of independent access UE, independent operation.Can certainly match or polymerization operation with other carrier waves.
At present, entered the LTE R12 stage, the standardization effort of new carrier wave is postponed in LTE R12, and has had some preliminary conclusions and introduced again some new functions.
New carrier wave is used as a kind of new carrier type and is carrying out standardized related work, is some the common recognition property conclusions in new carrier wave below:
In new carrier wave, adopt the single port CRS in 5 milliseconds of (5ms) cycles to hold link synchronization tracing and (in the application, be called 5ms CRS, or be called synchronous tracking CRS), obviously be not identical with the CRS in related system here, and the port number of its support is different.
In new carrier wave particularly in synchronous new carrier wave, discussing at present and whether configuring transmission master sync signal/auxiliary synchronous signals (Primary Synchronization Signal/Secondary Synchronization Signal, referred to as PSS/SSS) and 5ms CRS, most companies are thought synchronously newly still needs configuration to send PSS/SSS and 5ms CRS in carrier wave.
Configures physical down control channel (Physical Downlink Control Channel not in new carrier wave, referred to as PDCCH) territory, original Physical Downlink Control Channel (Physical Downlink Control Channel, referred to as PDCCH) territory may be used to transmitting physical DSCH Downlink Shared Channel (Physical Downlink Shared Channel, referred to as PDSCH).In new carrier wave, configures physical is not mixed automatic repeat request indicating channel (Physical HARQ Indicator Channel, referred to as PHICH) and Physical Control Format Indicator Channel (Physical Control Format Indicator Channel, referred to as PCFICH).
New carrier wave is divided into two kinds of dependent operation and independent operations, and the new carrier wave of foregoing description is the new carrier wave of non-independent operation.The difference of the new carrier wave of independent operation and the new carrier wave of dependent operation is: dependent operation NCT needs and at least one backward compatibility carrier aggregation operation.General dependent operation NCT can only ZuoUEFu community (Secondary Cell, referred to as Scell).
In new carrier wave, preliminary project is still continued to use demodulated reference signal (the Demodulation Reference Signal in LTE R11, referred to as DMRS) pattern is as demodulated reference signal, but at 6 Physical Resource Block (the Physical Resource Block in the middle of carrier wave, referred to as PRB) in (defining with the PRB in LTE 36.211 agreements identical), owing to carrying PSS/SSS now, the position of the position of PSS/SSS and DMRS pattern place symbol clashes middle 6 PRB centerings.In LTE R11, by not shining upon DMRS 6 PRB centerings of this centre, manage conflict, now UE still can utilize the CRS of 6 middle PRB centerings to do data demodulates.In new carrier wave, owing to no longer sending CRS, so 6 middle PRB centerings need to configure DMRS, so this conflict solves, be necessary.And also there are some solutions, for example some companies provide, consider that the DMRS clashing is in part OFDM symbol, so the DMRS in the OFDM symbol that suggestion clashes middle 6 PRB centerings destroys rear transmission PSS/SSS, DMRS demodulating data in other remaining OFDM symbols of 6 PRB centerings in the middle of UE is used, causes demodulation performance poor.
The poor problem of data demodulates Performance Ratio for the processing method of synchronizing signal in correlation technique, not yet proposes effective solution at present.
Summary of the invention
The invention provides a kind of processing method, Apparatus and system, channel estimation methods device of synchronizing signal, at least to address the above problem.
According to an aspect of the present invention, a kind of processing method of synchronizing signal is provided, comprise: network side is determined the first pre-coding matrix that the demodulated reference signal DMRS of one or more antenna ports that a plurality of Physical Resource Block PRB of carrying master sync signal PSS and/or auxiliary synchronous signals SSS are right is used, wherein, described the first pre-coding matrix all has use in described a plurality of PRB; Described network side is used described the first pre-coding matrix to carry out precoding to described PSS and/or described SSS.
Preferably, network side determines that the first pre-coding matrix that the right one or more antenna ports of a plurality of PRB of carrying PSS and/or SSS are used comprises:
When using single antenna port to send described PSS and/or described SSS, described network side is selected an antenna port from the right all antenna ports of described PRB, and the second pre-coding matrix that the DMRS of an antenna port of this selection is used is as described the first pre-coding matrix;
When using many antenna ports to send described PSS and/or described SSS, described network side is selected at least two antenna ports from the right all antenna ports of described PRB, and the 3rd pre-coding matrix that the DMRS of at least two antenna ports of this selection is used is as described the first pre-coding matrix.
Preferably, at described network side, use after described the first pre-coding matrix carries out precoding to described PSS and/or described SSS, also comprise:
Described network side sends one of in the following manner described PSS and/or described SSS:
Mode one: in FDD mode, and while being standard cyclic prefix CP, the described PSS of described network side send precoding on the orthogonal frequency division multiplex OFDM symbol 6 of subframe 0 and subframe 5 after, the described SSS send precoding on the OFDM symbol 5 of described subframe 0 and described subframe 5 after;
In TDD mode, and while being described standard C P, the described SSS of described network side send precoding on the OFDM symbol 13 of described subframe 0 and described subframe 5 after, the described PSS send precoding on the OFDM symbol 2 of described subframe 1 and described subframe 6 after;
Mode two: when described standard C P, the described PSS of described network side send precoding on the OFDM symbol 3 of described subframe 0 and described subframe 5 after, the described SSS send precoding on the OFDM symbol 2 of described subframe 0 and subframe 5 after;
Mode three: when described standard C P, the described PSS of described network side send precoding on the symbol 8 of described subframe 0 and described subframe 5 after, the described SSS send precoding on the OFDM symbol 1 of described subframe 0 and described subframe 5 after;
Mode four: in described FDD mode, and while being described standard C P, the described PSS of described network side send precoding on the OFDM symbol 8 of described subframe 0 and subframe 5 after, the described SSS send precoding on the OFDM symbol 3 of described subframe 0 and described subframe 5 after;
In described TDD mode, and while being described standard C P, described network side described 0 and the OFDM symbol 8 of described subframe 5 on described SSS after sending precoding, the PSS send precoding on the OFDM symbol 0 of described subframe 1 and subframe 6 after.
Preferably, in described FDD mode and while being described standard C P configuration, described network side is cancelled and is sent DMRS in the OFDM symbol 5 of described PRB centering of the described PSS of carrying and/or described SSS and the resource of OFDM symbol 6; When described TDD mode and described standard C P configuration, described network side is cancelled and is sent described DMRS in the resource of the OFDM symbol 13 of the PRB centering of the described SSS of carrying.
Preferably, described network side is used described the first pre-coding matrix to carry out precoding to described PSS and/or described SSS to comprise:
When using many antenna ports to send described PSS and/or described SSS, described network side is divided into many groups by the subcarrier of the described PSS of carrying and/or described SSS; The described PSS of described each group carrying and/or described SSS use this each organize corresponding antenna port the corresponding pre-coding matrix of DMRS carry out precoding; Wherein, the subcarrier of described each group is used different antenna ports to send, and packet count equals to send the sum of the antenna port that described PSS and/or SSS use.
Preferably, described network side is divided into many groups by the subcarrier of carrying described PSS and/or described SSS and comprises one of following:
Numbering according to the subcarrier of the described PSS of carrying and/or described SSS is divided into groups;
PRBWei unit according to the subcarrier of the described PSS of carrying and/or described SSS divides into groups.
Preferably, described the first pre-coding matrix is identical at the pre-coding matrix of described a plurality of PRB centerings.
Preferably, a described antenna port of selection comprises one of following: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
Preferably, described at least two antenna ports of selection comprise at least two in following antenna port: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
Preferably, at described network side, use after described the first pre-coding matrix carries out precoding to described PSS and/or described SSS, also comprise: the PRB that receiving terminal is determined the transmission data that described network side distributes is during to a plurality of Physical Resource Block PRB centering at carrying master sync signal PSS and/or auxiliary synchronous signals SSS, described receiving terminal is one of below the PRB of described transmission data centering receives: data, DMRS, described PSS that described network side sends; Data, described DMRS, described SSS that described network side sends; Data, DMRS, described PSS and described SSS that described network side sends;
Described receiving terminal is carried out one of following operation:
The described PSS that described receiving terminal use receives and/or described SSS and described DMRS are that the data that described network side sends are carried out demodulation;
Described receiving terminal carries out combined decoding to the following data that receive:
The data that the described PSS receiving and/or described SSS, described DMRS, described network side send.
Preferably, the pre-coding matrix that the definite PSS receiving from the PRB centering of described transmission data of described receiving terminal and/or SSS are used is identical with the pre-coding matrix of the DMRS that the PRB centering from described transmission data receives;
Preferably, when using single antenna port to send described PSS and/or described SSS,
The antenna port that the definite PSS receiving from the PRB centering of described transmission data of described receiving terminal and/or SSS are used is identical with the antenna port that the DMRS that the PRB centering from described transmission data receives is used;
Described receiving terminal determines that the PSS and/or the corresponding pre-coding matrix of SSS that from the right OFDM symbol of the PRB of described transmission data, receive are in described OFDM symbol, to be stopped the pre-coding matrix of the DMRS of transmission.
According to another aspect of the invention, a kind of processing method of synchronizing signal is also provided, comprise: right middle reception master sync signal PSS and/or the auxiliary synchronous signals SSS of Physical Resource Block PRB that receiving terminal is distributing, wherein, described PSS and/or described SSS are used the first pre-coding matrix to carry out precoding processing by network side, described the first pre-coding matrix is the pre-coding matrix that the demodulated reference signal DMRS of one or more antenna ports that a plurality of PRB of the described PSS of the definite carrying of described network side and/or described SSS are right is used, wherein, described the first pre-coding matrix all has use in described a plurality of PRB, described receiving terminal is used the downlink data of the PRB centering of distributing described in described PSS and/or described SSS demodulation.
Preferably, described receiving terminal is used the downlink data of the PRB centering of distributing described in described PSS and/or described SSS demodulation to comprise: described receiving terminal determines that PRB that described network side sends data is to the PRB centering at the described PSS of carrying and/or described SSS; Described receiving terminal receives described PSS and/or the SSS of the PRB centering of described transmission data, and DMRS; Described receiving terminal is used described PSS and/or SSS, and described DMRS carries out demodulation to described data.
Preferably, the pre-coding matrix that the PSS receiving from the PRB centering of described transmission data and/or SSS are used is identical with the pre-coding matrix of the DMRS that the PRB centering from described transmission data receives.
Preferably, the antenna port that the PSS receiving from the PRB centering of described transmission data and/or SSS are used is identical with the antenna port that the DMRS that the PRB centering from described transmission data receives is used.
In OFDM symbol corresponding to the PSS preferably, receiving and/or SSS, being cancelled the pre-coding matrix that sends DMRS is described the first pre-coding matrix that described PSS and/or described SSS are corresponding.
Preferably, when using single antenna port to send described PSS and/or described SSS, described the first pre-coding matrix is the second pre-coding matrix that an antenna port that described network side is selected from the right all antenna ports of described PRB is used;
When using many antenna ports to send described PSS and/or described SSS, described the first pre-coding matrix is the 3rd pre-coding matrix that at least two antenna ports that described network side is selected from the right all antenna ports of described PRB are used.
Preferably, the PRB of described distribution is to referring to that described network side is the PRB couple for transmitting downlink data and/or control signal that described receiving terminal distributes, and the PRB centering of described distribution is disposed described PSS and/or described SSS.
Preferably, described downlink data comprises: user face data and control class signaling.
Preferably, when using many antenna ports to send described PSS and/or described SSS, the subcarrier that carries described PSS and/or described SSS will be divided into many groups by described network side; The described PSS of described each group carrying and/or described SSS use this each organize corresponding antenna port the corresponding pre-coding matrix of DMRS carry out precoding; Wherein, the subcarrier of described each group is used different antenna ports to send, and packet count equals to send the sum of the antenna port that described PSS and/or SSS use.
Preferably, one of in the following manner the subcarrier of the described PSS of carrying and/or described SSS will be divided into many groups by described network side:
Numbering according to the subcarrier of the described PSS of carrying and/or described SSS is divided into groups;
According to the PRB of the subcarrier of the described PSS of carrying and/or described SSS, for lifting position, divide into groups.
Preferably, described the first pre-coding matrix is identical at the pre-coding matrix of described a plurality of PRB centerings.
Preferably, a described antenna port of selection comprises one of following:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10.
Preferably, described at least two antenna ports of selection comprise at least two in following antenna port:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10.
In accordance with a further aspect of the present invention, a kind of processing unit of synchronizing signal is also provided, be applied to network side, comprise: the first determination module, for the first pre-coding matrix of determining that the demodulated reference signal DMRS of one or more antenna ports that a plurality of Physical Resource Block PRB of carrying master sync signal PSS and/or auxiliary synchronous signals SSS are right is used, wherein, described the first pre-coding matrix all has use in described a plurality of PRB;
The first precoding module, for being used described the first pre-coding matrix to carry out precoding to described PSS and/or described SSS.
Preferably, described the first determination module comprises:
First selects module, for when using single antenna port to send described PSS and/or described SSS, from the right all antenna ports of described PRB, selects an antenna port; The second determination module, the second pre-coding matrix using for the DMRS of an antenna port of this selection is as described the first pre-coding matrix;
Second selects module, and for when using many antenna ports to send described PSS and/or described SSS, described network side is selected at least two antenna ports from the right all antenna ports of described PRB; The 3rd determination module, for the 3rd pre-coding matrix that the DMRS of at least two antenna ports of this selection is used as described the first pre-coding matrix.
Preferably, said apparatus also comprises: sending module, for using in described the first precoding module after described the first pre-coding matrix carries out precoding to described PSS and/or described SSS, sends one of in the following manner described PSS and/or described SSS:
Mode one: in FDD mode, and while being standard cyclic prefix CP, the described PSS of described network side send precoding on the OFDM symbol 6 of subframe 0 and subframe 5 after, the described SSS send precoding on the OFDM symbol 5 of described subframe 0 and described subframe 5 after;
In TDD mode, and while being described standard C P, the described SSS of described network side send precoding on the OFDM symbol 13 of described subframe 0 and described subframe 5 after, the described PSS send precoding on the OFDM symbol 2 of described subframe 1 and described subframe 6 after;
Mode two: when described standard C P, the described PSS send precoding on the OFDM symbol 3 of described subframe 0 and described subframe 5 after, the described SSS send precoding on the OFDM symbol 2 of described subframe 0 and subframe 5 after;
Mode three: when described standard C P, the described PSS send precoding on the OFDM symbol 8 of described subframe 0 and described subframe 5 after, the described SSS send precoding on the OFDM symbol 1 of described subframe 0 and described subframe 5 after;
Mode four: in described FDD mode, and while being described standard C P, the described PSS send precoding on the symbol 8 of described subframe 0 and subframe 5 after, the described SSS send precoding on the OFDM symbol 3 of described subframe 0 and described subframe 5 after;
In described TDD mode, and while being described standard C P, described 0 and the symbol 8 of described subframe 5 on described SSS after sending precoding, the PSS send precoding on the OFDM symbol 0 of described subframe 1 and subframe 6 after.
Preferably, said apparatus also comprises:
The first processing module in described FDD mode and while being described standard C P configuration, is cancelled and is sent demodulated reference signal DMRS in the orthogonal frequency division multiplex OFDM symbol 5 of described PRB centering of the described PSS of carrying and/or described SSS and the resource of OFDM symbol 6; The second processing module for when described TDD mode and the described standard C P configuration, is cancelled and is sent described DMRS in the resource of the OFDM symbol 13 of the PRB centering of the described SSS of carrying.
Preferably, described the first precoding module comprises:
First divides module, for when using many antenna ports to send described PSS and/or described SSS, the subcarrier of the described PSS of carrying and/or described SSS is divided into many groups; The second precoding module, for the described PSS of described each group carrying and/or described SSS are used this each organize corresponding antenna port the corresponding pre-coding matrix of DMRS carry out precoding; Wherein, the subcarrier of described each group is used different antenna ports to send, and packet count equals to send the sum of the antenna port that described PSS and/or SSS use.
Preferably, described the first division module comprises:
Second divides module, for dividing into groups according to the numbering of the subcarrier of the described PSS of carrying and/or described SSS; Or
The 3rd divides module, for dividing into groups according to the PRBWei unit of the subcarrier of the described PSS of carrying and/or described SSS.
Preferably, described the first pre-coding matrix is identical at the pre-coding matrix of described a plurality of PRB centerings.
Preferably, a described first described antenna port of selecting module to select comprises one of following:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10.
Preferably, described second described at least two antenna ports of selecting module to select comprise at least two in following antenna port:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10.
According to another aspect of the invention, a kind of processing unit of synchronizing signal is also provided, be applied to receiving terminal, comprise: the first receiver module, for right reception master sync signal PSS and/or the auxiliary synchronous signals SSS of Physical Resource Block PRB distributing, wherein, described PSS and/or described SSS are used the first pre-coding matrix to carry out precoding processing by network side, described the first pre-coding matrix is the pre-coding matrix that the demodulated reference signal DMRS of one or more antenna ports that a plurality of PRB of the described PSS of the definite carrying of described network side and/or described SSS are right is used, wherein, described the first pre-coding matrix all has use in described a plurality of PRB,
The first demodulation module, for being used the downlink data of the PRB centering of distributing described in described PSS and/or described SSS demodulation.
Preferably, described the first demodulation module comprises:
The 4th determination module, the PRB that sends data for definite described network side is to the PRB centering at the described PSS of carrying and/or described SSS;
The second receiver module, for receiving described PSS and/or the described SSS of the PRB centering of described transmission data, and DMRS;
The second demodulation module, for using described PSS and/or SSS, and DMRS carries out demodulation to described transmission data.
Preferably, the pre-coding matrix that the PSS that described the second receiver module receives from the PRB centering of described transmission data and/or SSS are used is identical with the pre-coding matrix of the DMRS that the PRB centering from described transmission data receives.
Preferably, the antenna port that the PSS that described the second receiver module receives from the PRB centering of described transmission data and/or SSS are used is identical with the antenna port that the DMRS that the PRB centering from described transmission data receives is used.
In OFDM symbol corresponding to the PSS that preferably, described the second receiver module receives and/or SSS, being cancelled the pre-coding matrix that sends DMRS is described the first pre-coding matrix that described PSS and/or described SSS are corresponding.
Preferably, when using single antenna port to send described PSS and/or described SSS, described the first pre-coding matrix is the second pre-coding matrix that an antenna port that described network side is selected from the right all antenna ports of described PRB is used;
When using many antenna ports to send described PSS and/or described SSS, described the first pre-coding matrix is the 3rd pre-coding matrix that at least two antenna ports that described network side is selected from the right all antenna ports of described PRB are used.
Preferably, the PRB of described distribution is to referring to that described network side is the PRB couple for transmitting downlink data and/or control signal that described receiving terminal distributes, and the PRB centering of described distribution is disposed described PSS and/or described SSS.
Preferably, described downlink data comprises: user face data and control class signaling.
Preferably, when using many antenna ports to send described PSS and/or described SSS, the subcarrier that carries described PSS and/or described SSS will be divided into many groups by described network side; The described PSS of each the group carrying in described many groups and/or described SSS use this each organize corresponding antenna port the corresponding pre-coding matrix of DMRS carry out precoding; Wherein, the subcarrier of described each group is used different antenna ports to send, and packet count equals to send the sum of the antenna port that described PSS and/or SSS use.
Preferably, the subcarrier that carries described PSS and/or described SSS is divided into groups one of in the following manner by described network side:
Numbering according to the subcarrier of the described PSS of carrying and/or described SSS is divided into groups;
PRBWei unit according to the subcarrier of the described PSS of carrying and/or described SSS divides into groups.
Preferably, described the first pre-coding matrix is identical at the pre-coding matrix of described a plurality of PRB centerings.
Preferably, a described antenna port of selection comprises one of following:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10.
Preferably, described at least two antenna ports of selection comprise at least two in following antenna port:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10.
According to another aspect of the invention, also provide a kind for the treatment of system of synchronizing signal, having comprised: the processing unit (being applied to receiving terminal) of the processing unit of above-mentioned synchronizing signal (being applied to network side) and above-mentioned synchronizing signal.
In accordance with a further aspect of the present invention, also provide a kind of processing method of synchronizing signal, having comprised: network side has been determined the port of the demodulated reference signal DMRS that the Physical Resource Block of carrying master sync signal PSS and/or auxiliary synchronous signals SSS is right;
Described network side described Physical Resource Block on described PSS and/or described SSS are mapped as to the signal of described port.
Preferably, described network side described Physical Resource Block on described PSS and/or described SSS are mapped as to described port signal comprise one of following:
Described network side described Physical Resource Block on described PSS is mapped as to the signal of one of following DMRS port:
Port 7, port 8, port 9, port one 0;
Described network side described Physical Resource Block on described SSS is mapped as to the signal of one of following DMRS port:
Described port 7, described port 8, described port 9, described port one 0:
Described network side described Physical Resource Block on described PSS and described SSS are mapped as to the signal of one of following DMRS port, or be mapped as the signal of two ports in following DMRS port:
Described port 7, described port 8, described port 9, described port one 0.
Preferably, described network side directly or is indirectly indicated master sync signal and the corresponding default port of described auxiliary synchronous signals described in receiving terminal.
Preferably, the default port-for-port 7 that described master sync signal is corresponding, the default port-for-port 8 that described auxiliary synchronous signals is corresponding; Or the default port-for-port 8 that described master sync signal is corresponding, the default port-for-port 7 that described auxiliary synchronous signals is corresponding.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, while being used as the reference signal of DMRS port with described PSS and/or SSS, the shared RE of port of described DMRS is the Resource Unit RE that described PSS and/or described SSS take, and, the sequence that the port of described DMRS is used is the sequence that described PSS and/or described SSS are used, and the port of described DMRS is one of following: port 7, port 8, port 9, port one 0.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, described PSS and/or described SSS be during as the reference signal of DMRS port M, port N,
The RE that described DMRS port M takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The RE that described DMRS port N takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
It is one of following that described DMRS port M and DMRS port N are: port 7, port 8, port 9, port one 0, the sequence that described PSS or described SSS are used is the sequence that described DMRS port M is used.
Preferably, described PSS and/or described SSS be during as the DMRS signal of described DMRS port M and/or described port N, the PRB that carries described PSS and/or described SSS between use identical weights to carry out precoding processing.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on,
When the transmission of alone family, the maximum number of layers that dispatch user data sends is less than or equal to 2;
When multiuser multiplexing transmits, the number of layers that dispatch user data sends is 1, and the data of described multiuser multiplexing transmission send as DMRS port based on described PSS or described SSS.
Preferably, described network side is indicated the distribution condition of described DMRS port and described number of layers by down control channel; Or
Described network side is notified described receiving terminal by high-level signaling, the distribution condition of weights information, described DMRS port and described number of layers that described PSS or described SSS are used; Or
When the PRB centering of the described PSS of carrying and/or described SSS sends enhancing Physical Downlink Control Channel, default described port numbers.
According to another aspect of the invention, also provide a kind of channel estimation methods, having comprised: receiving terminal has received master sync signal PSS and/or auxiliary synchronous signals SSS; Described receiving terminal is used described PSS and/or described SSS to carry out channel estimating; Wherein, described PSS and/or described SSS are the signal that described network side is mapped as DMRS port, and described DMRS port is the port of the right DMRS of the Physical Resource Block of the described PSS of carrying and/or described SSS.
Preferably, described receiving terminal is used described PSS and/or described SSS to carry out channel estimating to comprise one of following:
Described receiving terminal is used described PSS to carry out the channel estimating of one of following DMRS port:
Port 7, port 8, port 9, port one 0;
Described receiving terminal is used described SSS to carry out the channel estimating of one of following DMRS port:
Described port 7, described port 8, described port 9, described port one 0;
Described receiving terminal is used described PSS and described SSS to carry out the channel estimating of one of following DMRS port or the channel estimating of two ports in following DMRS port:
Described port 7, described port 8, described port 9, described port one 0;
Described receiving terminal is used described PSS or described SSS to carry out the channel estimating of described port 7;
Described receiving terminal is used described PSS or described SSS to carry out the channel estimating of described port 8;
Described receiving terminal is used described PSS or described SSS to carry out the channel estimating of described port 7, and uses described PSS or described SSS to carry out the channel estimating of described port 8.
Preferably, described in described receiving terminal root Ju, network side directly or is indirectly indicated and is determined described master sync signal and default port corresponding to described auxiliary synchronous signals.
Preferably, the default port-for-port 7 that described master sync signal is corresponding, the default port-for-port 8 that described auxiliary synchronous signals is corresponding; Or the default port-for-port 8 that described master sync signal is corresponding, the default port-for-port 7 that described auxiliary synchronous signals is corresponding.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, when the port of use DMRS carries out channel estimating, the shared RE of port of the DMRS of described receiving terminal expectation is the Resource Unit RE that described PSS and/or described SSS take, and, the sequence that the port of described DMRS is used is the sequence that described PSS and/or described SSS are used, and the port of described DMRS is one of following: port 7, port 8, port 9, port one 0.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, while using DMRS port M and DMRS port N to carry out channel estimating,
The RE that described DMRS port M takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The RE that described DMRS port N takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The sequence that described PSS or described SSS are used is the sequence that described DMRS port M is used, and it is one of following that described DMRS port M and DMRS port N are: port 7, port 8, port 9, port one 0.
Preferably, when using described PSS and/or described SSS to carry out the channel estimating of described DMRS port M and described port N, the Physical Resource Block of the described receiving terminal expectation described PSS of carrying and/or described SSS is identical to precoding weights corresponding to upper DMRS.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on,
When the transmission of alone family, the maximum number of layers that dispatch user data sends is less than or equal to 2;
When multiuser multiplexing transmits, the number of layers that dispatch user data sends is 1, and the data of described multiuser multiplexing transmission send as DMRS port based on described PSS or described SSS.
Preferably, described receiving terminal, by receiving the Downlink Control Information of down control channel, obtains the distribution condition of described DMRS port and described number of layers; Or
Described receiving terminal is known by high-level signaling, the distribution condition of weights information, described DMRS port and described number of layers that described PSS or described SSS are used; Or
When the PRB centering of the described PSS of carrying and/or described SSS sends enhancing Physical Downlink Control Channel, default described port numbers.
In accordance with a further aspect of the present invention, a kind of processing unit of synchronizing signal is also provided, be applied to network side, comprise: the 5th determination module, for the port of the right demodulated reference signal DMRS of the Physical Resource Block of definite carrying master sync signal PSS and/or auxiliary synchronous signals SSS; The first mapping block, for described Physical Resource Block on described PSS and/or described SSS are mapped as to the signal of described port.
Preferably, described the first mapping block comprises with one of lower module:
The second mapping block, for described Physical Resource Block on described PSS is mapped as to the signal of one of following DMRS port: port 7, port 8, port 9, port one 0;
The 3rd mapping block, for described Physical Resource Block on described SSS is mapped as to the signal of one of following DMRS port: described port 7, described port 8, described port 9, described port one 0;
The 4th mapping block, for described Physical Resource Block on described PSS and described SSS are mapped as to the signal of one of following DMRS port, or be mapped as the signal of two ports in following DMRS port: described port 7, described port 8, described port 9, described port one 0.
Preferably, said apparatus also comprises: the first indicating module, and for directly or indirectly indicating master sync signal and the corresponding default port of described auxiliary synchronous signals described in receiving terminal.
Preferably, the default port-for-port 7 that described master sync signal is corresponding, the default port-for-port 8 that described auxiliary synchronous signals is corresponding; Or, the default port-for-port 8 that described master sync signal is corresponding, the default port-for-port 7 that described auxiliary synchronous signals is corresponding.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, while being used as the reference signal of DMRS port with described PSS and/or SSS, the shared RE of port of described DMRS is the Resource Unit RE that described PSS and/or described SSS take, and, the sequence that the port of described DMRS is used is the sequence that described PSS and/or described SSS are used, and the port of described DMRS is one of following: port 7, port 8, port 9, port one 0.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, described PSS and/or described SSS be during as the reference signal of DMRS port M, port N,
The RE that described DMRS port M takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The RE that described DMRS port N takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
It is one of following that described DMRS port M and DMRS port N are: port 7, port 8, port 9, port one 0, the sequence that described PSS or described SSS are used is the sequence that described DMRS port M is used.
Preferably, described PSS and/or described SSS be during as the DMRS signal of described DMRS port M and/or described port N, the PRB that carries described PSS and/or described SSS between use identical weights to carry out precoding processing.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, when the transmission of alone family, the maximum number of layers that dispatch user data sends is less than or equal to 2; When multiuser multiplexing transmits, the number of layers that dispatch user data sends is 1, and the data of described multiuser multiplexing transmission send as DMRS port based on described PSS or described SSS.
Preferably, said apparatus also comprises: the second indicating module, for indicate the distribution condition of described DMRS port and described number of layers by down control channel; Or, notification module, for notify described receiving terminal by high-level signaling, the distribution condition of weights information, described DMRS port and described number of layers that described PSS or described SSS are used; Or, the 3rd processing module, while sending enhancing Physical Downlink Control Channel for the PRB centering at the described PSS of carrying and/or described SSS, default described port numbers.
According to another aspect of the invention, also provide a kind of channel estimating apparatus, be applied to receiving terminal, having comprised: the 3rd receiver module, for receiving master sync signal PSS and/or auxiliary synchronous signals SSS; The first channel estimation module, for being used described PSS and/or described SSS to carry out channel estimating; Wherein, described PSS and/or described SSS are the signal that described network side is mapped as DMRS port, and described DMRS port is the port of the right DMRS of the Physical Resource Block of the described PSS of carrying and/or described SSS.
Preferably, described the first channel estimation module comprises one of following module:
Second channel estimation module, for using described PSS to carry out the channel estimating of one of following DMRS port:
Port 7, port 8, port 9, port one 0;
The 3rd channel estimation module, for using described SSS to carry out the channel estimating of one of following DMRS port:
Described port 7, described port 8, described port 9, described port one 0;
The 4th channel estimation module, for using described PSS and described SSS to carry out the channel estimating of one of following DMRS port or the channel estimating of two ports in following DMRS port:
Described port 7, described port 8, described port 9, described port one 0;
The 5th channel estimation module, for being used described PSS or described SSS to carry out the channel estimating of described port 7;
The 6th channel estimation module, for being used described PSS or described SSS to carry out the channel estimating of described port 8;
The 8th channel estimation module, for using described PSS or described SSS to carry out the channel estimating of described port 7, and is used described PSS or described SSS to carry out the channel estimating of described port 8.
Preferably, said apparatus also comprises: the 6th determination module, and for directly or indirectly indicating and determine described master sync signal and default port corresponding to described auxiliary synchronous signals according to described network side.
Preferably, the default port-for-port 7 that described master sync signal is corresponding, the default port-for-port 8 that described auxiliary synchronous signals is corresponding; Or the default port-for-port 8 that described master sync signal is corresponding, the default port-for-port 7 that described auxiliary synchronous signals is corresponding.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, when the port of use DMRS carries out channel estimating, the shared RE of port of the DMRS of described receiving terminal expectation is the Resource Unit RE that described PSS and/or described SSS take, and, the sequence that the port of described DMRS is used is the sequence that described PSS and/or described SSS are used, and the port of described DMRS is one of following: port 7, port 8, port 9, port one 0.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, while using DMRS port M and DMRS port N to carry out channel estimating,
The RE that described DMRS port M takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The RE that described DMRS port N takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The sequence that described PSS or described SSS are used is the sequence that described DMRS port M is used, and it is one of following that described DMRS port M and DMRS port N are: port 7, port 8, port 9, port one 0.
Preferably, when using described PSS and/or described SSS to carry out the channel estimating of described DMRS port M and described port N, the Physical Resource Block of the described receiving terminal expectation described PSS of carrying and/or described SSS is identical to precoding weights corresponding to upper DMRS.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on,
When the transmission of alone family, the maximum number of layers that dispatch user data sends is less than or equal to 2;
When multiuser multiplexing transmits, the number of layers that dispatch user data sends is 1, and the data of described multiuser multiplexing transmission send as DMRS port based on described PSS or described SSS.
Preferably, said apparatus also comprises:
The first acquisition module, for by receiving the Downlink Control Information of down control channel, obtains the distribution condition of described DMRS port and described number of layers; Or
The second acquisition module, knows by high-level signaling for described receiving terminal, the distribution condition of weights information, described DMRS port and described number of layers that described PSS or described SSS are used; Or
Presetting module, while sending enhancing Physical Downlink Control Channel for the PRB centering at the described PSS of carrying and/or described SSS, default described port numbers.
According to another aspect of the invention, also provide a kind for the treatment of system of synchronizing signal, having comprised: the processing unit of above-mentioned synchronizing signal (being applied to network side) and above-mentioned channel estimating apparatus (being applied to receiving terminal).
Pass through technique scheme, for PSS and/or SSS, adopt precoding processing, the pre-coding matrix that the DMRS that this pre-coding matrix is the right one or more antenna ports of a plurality of PRB of carrying PSS and/or SSS is used, make recipient can use PSS and/or SSS to combine for demodulating data with the DMRS of the PRB centering of carrying PSS and/or SSS, solve the poor problem of demodulation performance of the processing method of synchronizing signal in correlation technique, thereby improved the data demodulates performance of PRB centering.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the first pass figure according to the processing method of the synchronizing signal of the embodiment of the present invention;
Fig. 2 is the second flow chart according to the processing method of the synchronizing signal of the embodiment of the present invention;
Fig. 3 is the first structured flowchart according to the processing unit of the synchronizing signal of the embodiment of the present invention;
Fig. 4 is preferred the first structured flowchart according to the processing unit of the synchronizing signal of the embodiment of the present invention;
Fig. 5 is the second structured flowchart according to the processing unit of the synchronizing signal of the embodiment of the present invention;
Fig. 6 is preferred the second structured flowchart according to the processing unit of the synchronizing signal of the embodiment of the present invention;
Fig. 7 is the first structured flowchart according to the treatment system of the synchronizing signal of the embodiment of the present invention;
Fig. 8 is the 3rd flow chart according to the processing method of the synchronizing signal of the embodiment of the present invention;
Fig. 9 is according to the flow chart of the channel estimation methods of the embodiment of the present invention;
Figure 10 is the 3rd structured flowchart according to the processing unit of the synchronizing channel of the embodiment of the present invention;
Figure 11 is preferred the 3rd structured flowchart according to the processing unit of the synchronizing channel of the embodiment of the present invention;
Figure 12 is according to the structured flowchart of the channel estimating apparatus of the embodiment of the present invention;
Figure 13 is the preferred structured flowchart according to the channel estimating apparatus of the embodiment of the present invention;
Figure 14 is the second structured flowchart according to the treatment system of the synchronizing signal of the embodiment of the present invention.
Embodiment
Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
The present embodiment provides a kind of processing method of synchronizing signal, and Fig. 1 is the first pass figure according to the processing method of the synchronizing signal of the embodiment of the present invention, and as shown in Figure 1, the method mainly comprises the following steps (step 5102-step 5104).
Step S102, network side is determined the first pre-coding matrix that the DMRS of one or more antenna ports that a plurality of PRB of carrying PSS and/or SSS are right is used, wherein, the first pre-coding matrix all has use in a plurality of PRB.
Step S104, network side is used the first pre-coding matrix to carry out precoding to PSS and/or SSS.
Pass through above-mentioned steps, by adopting precoding processing for PSS and/or SSS, the pre-coding matrix that the DMRS that this pre-coding matrix is the right one or more antenna ports of a plurality of PRB of carrying PSS and/or SSS is used, make recipient can use PSS and/or SSS to combine for demodulating data with the DMRS of the PRB centering of carrying PSS and/or SSS, solve the poor problem of demodulation performance of the processing method of synchronizing signal in correlation technique, thereby improved the data demodulates performance of PRB centering.
For example: for new carrier wave, when new carrier wave is destroyed the DMRS on the OFDM symbol clashing with PSS and/or SSS 6 PRB centerings of centre, the PSS and/or the SSS send mode that adopt above-mentioned steps to provide, can solve the problem declining owing to destroying demodulation performance that part DMRS causes.
When implementing, according to using single antenna port and many antenna ports to send the difference of PSS and/or SSS, network side determines that the first pre-coding matrix that the right one or more antenna ports of a plurality of PRB of carrying PSS and/or SSS use can be by following two kinds of modes:
Mode one: when using single antenna port to send described PSS and/or described SSS, described network side is selected an antenna port from the right all antenna ports of described PRB, and the second pre-coding matrix that the DMRS of an antenna port of this selection is used is as described the first pre-coding matrix;
Mode two: when using many antenna ports to send described PSS and/or described SSS, described network side is selected at least two antenna ports from the right all antenna ports of described PRB, and the 3rd pre-coding matrix that the DMRS of at least two antenna ports of this selection is used is as described the first pre-coding matrix.
As an execution mode preferably, at network side, use after pre-coding matrix carries out precoding to described PSS and/or described SSS, one of can also be in the following manner send PSS and/or SSS:
Mode one: in Frequency Division Duplexing (FDD) (FDD) mode, and while being standard cyclic prefix (CP), the described PSS of described network side send precoding on OFDM (OFDM) symbol 6 of subframe 0 and subframe 5 after, the described SSS send precoding on the OFDM symbol 5 of subframe 0 and subframe 5 after;
In time division duplex (TDD) mode, and while being standard C P, the described SSS of network side send precoding on the OFDM symbol 13 of subframe 0 and subframe 5 after, the described PSS send precoding on the OFDM symbol 2 of described subframe 1 and described subframe 6 after;
Mode two: when described standard C P, the described PSS of described network side send precoding on the OFDM symbol 3 of described subframe 0 and described subframe 5 after, the described SSS send precoding on the OFDM symbol 2 of described subframe 0 and subframe 5 after;
Mode three: when described standard C P, the described PSS of described network side send precoding on the symbol 8 of described subframe 0 and described subframe 5 after, the described SSS send precoding on the OFDM symbol 1 of described subframe 0 and described subframe 5 after.
Mode four: in described FDD mode; and while being described standard C P; the described PSS of described network side send precoding on the OFDM symbol 8 of described subframe 0 and subframe 5 after, the described SSS send precoding on the OFDM symbol 3 of described subframe 0 and described subframe 5 after;
In TDD mode, and while being described standard C P, described network side described 0 and the OFDM symbol 8 of described subframe 5 on described SSS after sending precoding, the PSS send precoding on the OFDM symbol 0 of described subframe 1 and subframe 6 after.
When implementing, in order to improve the accuracy of transmission, when configure in described FDD mode and for standard C P, network side is cancellation transmission DMRS in the OFDM symbol 5 of PRB centering of carrying PSS and/or SSS and the resource of OFDM symbol 6; When TDD mode and described standard C P configuration, network side is cancelled and is sent DMRS in the resource of the OFDM symbol 13 of the PRB centering of carrying SSS.
When implementing, network side can adopt numerous embodiments realization to use the first pre-coding matrix to carry out precoding to PSS and/or SSS.For example: when using many antenna ports to send PSS and/or SSS, network side is divided into many groups by the subcarrier of carrying PSS and/or SSS; The PSS of each group carrying and/or SSS use this each organize corresponding antenna port the corresponding pre-coding matrix of DMRS carry out precoding; Wherein, the subcarrier of above-mentioned each group is used different antenna ports to send, and packet count equals to send the sum of the antenna port that described PSS and/or SSS use.
When implementing, can divide into groups according to the scheme in correlation technique, as an execution mode preferably, network side one of can be in the following way divided into many groups by the subcarrier of carrying PSS and/or SSS:
Mode one: the numbering according to the subcarrier of the described PSS of carrying and/or described SSS is divided into groups;
Mode two: the PRBWei unit according to the subcarrier of the described PSS of carrying and/or described SSS divides into groups.
As an execution mode preferably, the first pre-coding matrix is identical at the pre-coding matrix of described a plurality of PRB centerings.
As another execution mode preferably, it is one of following that an antenna port of selection comprises: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
As another execution mode preferably,, described at least two antenna ports of selection comprise at least two in following antenna port: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
For receiving terminal, at network side, use after described the first pre-coding matrix carries out precoding to described PSS and/or described SSS, need to, to the decoding data receiving, below the preferred implementation of decoding be described in detail:
The PRB that receiving terminal is determined the transmission data that described network side distributes is during to a plurality of PRB centering at carrying PSS and/or SSS, and receiving terminal is one of below the PRB centering that sends data receives: data, DMRS, PSS that network side sends; Data, DMRS, SSS that network side sends; Data, DMRS, PSS and SSS that network side sends; Then receiving terminal is carried out one of following operation:
Operation one: the described PSS that receiving terminal use receives and/or described SSS and described DMRS are that the data that described network side sends are carried out demodulation;
Operation two: receiving terminal carries out combined decoding to the following data that receive: the data that the described PSS receiving and/or described SSS, DMRS, network side send.
Preferably, the pre-coding matrix that the definite PSS receiving from the PRB centering of described transmission data of receiving terminal and/or SSS are used is identical with the pre-coding matrix of the DMRS that the PRB centering from described transmission data receives.
Preferably; when using single antenna port to send described PSS and/or described SSS, the antenna port that the definite PSS receiving from the PRB centering of described transmission data of described receiving terminal and/or SSS are used is identical with the antenna port that the DMRS that the PRB centering from described transmission data receives is used; Or described receiving terminal determines that the PSS and/or the corresponding pre-coding matrix of SSS that receive from the right OFDM symbol of the PRB of described transmission data are to be stopped the pre-coding matrix of the DMRS of transmission in described OFDM symbol.
This preferred embodiment provides a kind of processing method of synchronizing signal, and Fig. 2 is the second flow chart according to the processing method of the synchronizing signal of the embodiment of the present invention, and as shown in Figure 2, the method mainly comprises the following steps (step 5202-step 5204).
Step S202: right middle reception PSS and/or the SSS of PRB that receiving terminal is distributing, wherein, PSS and/or SSS are used the first pre-coding matrix to carry out precoding processing by network side, the first pre-coding matrix is the pre-coding matrix that the DMRS of one or more antenna ports that a plurality of PRB of the definite carrying PSS of network side and/or SSS are right is used, and the first pre-coding matrix all has use in described a plurality of PRB.
Step S204: receiving terminal is used the downlink data of the PRB centering of PSS and/or SSS demodulation distribution.
Pass through above-mentioned steps, the PSS and/or the SSS that by receiving precoding processing, cross, the pre-coding matrix that the DMRS that this pre-coding matrix is the right one or more antenna ports of a plurality of PRB of carrying PSS and/or SSS is used, make receiving terminal can use PSS and/or SSS to combine for demodulating data with the DMRS of the PRB centering of carrying PSS and/or SSS, solve the poor problem of demodulation performance of the processing method of synchronizing signal in correlation technique, thereby improved the data demodulates performance of PRB centering.
For example: for new carrier wave, when new carrier wave is destroyed the DMRS on the OFDM symbol clashing with PSS and/or SSS 6 PRB centerings of centre, the PSS and/or the SSS send mode that adopt above-mentioned steps to provide, can solve the problem declining owing to destroying demodulation performance that part DMRS causes.
When implementing, the downlink data of the PRB centering that receiving terminal can distribute by numerous embodiments demodulation, as an execution mode preferably, receiving terminal determines that PRB that described network side sends data is to the PRB centering at the described PSS of carrying and/or described SSS; Receiving terminal receives described PSS and/or the SSS of the PRB centering that sends data, and DMRS; Receiving terminal is used PSS and/or SSS, and described DMRS carries out demodulation to data.
Preferably, from sending the pre-coding matrix of the DMRS that pre-coding matrix that PSS that the PRB centering of data receives and/or SSS use receives with PRB centering from described transmission data, be identical.
Preferably, from sending the antenna port that DMRS that antenna port that PSS that the PRB centering of data receives and/or SSS use receives with PRB centering from described transmission data uses, be identical.
In OFDM symbol corresponding to the PSS preferably, receiving and/or SSS, being cancelled the pre-coding matrix that sends DMRS is described the first pre-coding matrix that described PSS and/or described SSS are corresponding.
When implementing; according to using single antenna port and many antenna ports to send the difference of PSS and/or SSS; when using single antenna port to send described PSS and/or described SSS, described the first pre-coding matrix is the second pre-coding matrix that an antenna port that described network side is selected from the right all antenna ports of described PRB is used; When using many antenna ports to send described PSS and/or described SSS, described the first pre-coding matrix is the 3rd pre-coding matrix that at least two antenna ports that described network side is selected from the right all antenna ports of described PRB are used.
Preferably, the PRB of distribution is to referring to that described network side is the PRB couple for transmitting downlink data and/or control signal that described receiving terminal distributes, and the PRB centering of described distribution is disposed described PSS and/or described SSS.Preferably, downlink data comprises ratio: user face data and control class signaling.
Preferably, when using many antenna ports to send described PSS and/or described SSS, the subcarrier that carries described PSS and/or described SSS will be divided into many groups by described network side; The described PSS of described each group carrying and/or described SSS use this each organize corresponding antenna port the corresponding pre-coding matrix of DMRS carry out precoding; Wherein, the subcarrier of described each group is used different antenna ports to send, and packet count equals to send the sum of the antenna port that described PSS and/or SSS use.
Preferably, one of in the following manner the subcarrier of the described PSS of carrying and/or described SSS will be divided into many groups by described network side:
Numbering according to the subcarrier of the described PSS of carrying and/or described SSS is divided into groups;
PRBWei unit according to the subcarrier of the described PSS of carrying and/or described SSS divides into groups.
As an execution mode preferably, the first pre-coding matrix is identical at the pre-coding matrix of described a plurality of PRB centerings.
As another execution mode preferably, it is one of following that a described antenna port of selection comprises: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
As another execution mode preferably, described at least two antenna ports of selection comprise at least two in following antenna port: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
It should be noted that, in the step shown in the flow chart of accompanying drawing, can in the computer system such as one group of computer executable instructions, carry out, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
In another embodiment, also provide a kind of process software of synchronizing signal, the technical scheme that this software is described for carrying out above-described embodiment and preferred embodiment.
In another embodiment, also provide a kind of storage medium, stored above-mentioned data transmission software in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
The embodiment of the present invention also provides a kind of processing unit of synchronizing signal, be applied to network side, the processing unit of this synchronizing signal can be for realizing processing method and the preferred implementation of above-mentioned synchronizing signal, carried out explanation, repeat no more, below the module relating in the processing unit of this synchronizing signal is described.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described system and method for following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.
Fig. 3 is the first structured flowchart according to the processing unit of the synchronizing signal of the embodiment of the present invention, and as shown in Figure 3, this device comprises: the first determination module 32, the first precoding module 34, are described in detail said structure below.
The first determination module 32, for the first pre-coding matrix of determining that the demodulated reference signal DMRS of one or more antenna ports that a plurality of Physical Resource Block PRB of carrying master sync signal PSS and/or auxiliary synchronous signals SSS are right is used, wherein, described the first pre-coding matrix all has use in described a plurality of PRB;
The first precoding module 34, is connected to the first determination module 32, for the first pre-coding matrix that uses the first determination module 32 to determine, PSS and/or SSS is carried out to precoding.
Fig. 4 is preferred the first structured flowchart according to the processing unit of the synchronizing signal of the embodiment of the present invention, and as shown in Figure 4, the first determination module 32 comprises: first selects module 322, the second determination modules 324, the second to select module 326, the three determination modules 328; Said apparatus also comprises: sending module 42, the first processing module 44, the second processing modules 46; The first precoding module 34 comprises: first divides module 342, the second precoding module 344; First divides module 342 comprises: second divides module 3422 or the 3rd divides module 3424, below said structure is elaborated.
The first determination module 32 comprises: first selects module 322, for when using single antenna port to send described PSS and/or described SSS, from the right all antenna ports of described PRB, selects an antenna port; The second determination module 324, is connected to the first selection module 322, and the second pre-coding matrix using for the DMRS of an antenna port that the first selection module 322 is selected is as described the first pre-coding matrix; Second selects module 326, for when using many antenna ports to send described PSS and/or described SSS, selects at least two antenna ports from the right all antenna ports of described PRB; The 3rd determination module 328, is connected to the second selection module 326, and the 3rd pre-coding matrix using for the DMRS of at least two antenna ports that the second selection module 326 is selected is as described the first pre-coding matrix.
Preferably, said apparatus also comprises: sending module 42, be connected to the first precoding module 34, for using in the first precoding module 34 after described the first pre-coding matrix carries out precoding to described PSS and/or described SSS, send one of in the following manner PSS and/or SSS:
Mode one: in FDD mode, and while being standard cyclic prefix CP, the described PSS of described network side send precoding on the OFDM symbol 6 of subframe 0 and subframe 5 after, the described SSS send precoding on the OFDM symbol 5 of described subframe 0 and described subframe 5 after:
In TDD mode; and while being described standard C P; the described SSS of described network side send precoding on the OFDM symbol 13 of described subframe 0 and described subframe 5 after, the described PSS send precoding on the OFDM symbol 2 of described subframe 1 and described subframe 6 after;
Mode two: when described standard C P, the described PSS send precoding on the OFDM symbol 3 of described subframe 0 and described subframe 5 after, the described SSS send precoding on the OFDM symbol 2 of described subframe 0 and subframe 5 after;
Mode three: when described standard C P, the described PSS send precoding on the OFDM symbol 8 of described subframe 0 and described subframe 5 after, the described SSS send precoding on the OFDM symbol 1 of described subframe 0 and described subframe 5 after;
Mode four: in described FDD mode, and while being described standard C P, the described PSS send precoding on the symbol 8 of described subframe 0 and subframe 5 after, the described SSS send precoding on the OFDM symbol 3 of described subframe 0 and described subframe 5 after:
In described TDD mode, and while being described standard C P, described 0 and the symbol 8 of described subframe 5 on described SSS after sending precoding, the PSS send precoding on the OFDM symbol 0 of described subframe 1 and subframe 6 after.
Preferably, said apparatus also comprises: the first processing module 44, be connected to the first precoding module 34, for in described FDD mode and while be described standard C P configuration, in the OFDM symbol 5 of described PRB centering of carrying PSS and/or SSS and the resource of OFDM symbol 6, cancel transmission demodulated reference signal DMRS; The second processing module 46, is connected to the first precoding module 34, for when described TDD mode and the described standard C P configuration, in the resource of the OFDM symbol 13 of the PRB centering of the described SSS of carrying, cancels and sends described DMRS.
Preferably, the first precoding module 34 comprises: first divides module 342, for when using many antenna ports to send described PSS and/or described SSS, the subcarrier of the described PSS of carrying and/or described SSS is divided into many groups; The second precoding module 344; be connected to the first division module 342, for the described PSS of each group carrying of many groups that the first division module 342 is divided and/or described SSS use this each organize corresponding antenna port the corresponding pre-coding matrix of DMRS carry out precoding; Wherein, the subcarrier of described each group is used different antenna ports to send, and packet count equals to send the sum of the antenna port that described PSS and/or SSS use.
Preferably, described first divides module 342 comprises: second divides module 3422, for dividing into groups according to the numbering of the subcarrier of the described PSS of carrying and/or described SSS; Or the 3rd divides module 3424, for dividing into groups according to the PRBWei unit of the subcarrier of the described PSS of carrying and/or described SSS.
Preferably, above-mentioned the first pre-coding matrix is identical at the pre-coding matrix of above-mentioned a plurality of PRB centerings.
Preferably, a first described antenna port of selecting module 322 to select comprises one of following: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
Preferably, second described at least two antenna ports of selecting module 326 to select comprise at least two in following antenna port: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
In another embodiment, also provide a kind of process software of synchronizing signal, the technical scheme that this software is described for carrying out above-described embodiment and preferred embodiment.
In another embodiment, also provide a kind of storage medium, stored above-mentioned data transmission software in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
The embodiment of the present invention also provides a kind of processing unit of synchronizing signal, be applied to receiving terminal, the processing unit of this synchronizing signal can be for realizing processing method and the preferred implementation of above-mentioned synchronizing signal, carried out explanation, repeat no more, below the module relating in the processing unit of this synchronizing signal is described.As used below, " module ' can realize the combination of software and/or the hardware of predetermined function to term.Although the described system and method for following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.
Fig. 5 is the second structured flowchart according to the processing unit of the synchronizing signal of the embodiment of the present invention, and as shown in Figure 5, this device comprises: the first receiver module 52, the first demodulation modules 54, are described in detail said structure below.
The first receiver module 52, for right reception master sync signal PSS and/or the auxiliary synchronous signals SSS of Physical Resource Block PRB distributing, wherein, described PSS and/or described SSS are used the first pre-coding matrix to carry out precoding processing by network side, described the first pre-coding matrix is the pre-coding matrix that the demodulated reference signal DMRS of one or more antenna ports that a plurality of PRB of the described PSS of the definite carrying of described network side and/or described SSS are right is used, wherein, described the first pre-coding matrix all has use in described a plurality of PRB; The first demodulation module 54, is connected to the first receiver module 52, for using the downlink data of the PRB centering that PSS that the first receiver module 52 receives and/or SSS demodulation distribute.
Fig. 6 is preferred the second structured flowchart according to the processing unit of the synchronizing signal of the embodiment of the present invention, the first demodulation module 54 comprises: the first demodulation module 54 comprises: the 4th determination module 542, the second receiver module 544, the second demodulation modules 546, are described in detail said structure below.
The 4th determination module 542, the PRB that sends data for definite described network side is to the PRB centering at the described PSS of carrying and/or described SSS; The second receiver module 544; be connected to the 4th determination module 542; the PRB that determines described network side transmission data for the 4th determination module 542, to when carrying the PRB centering of described PSS and/or described SSS, receives described PSS and/or the described SSS of the PRB centering that sends data, and DMRS; The second demodulation module 546, is connected to the second receiver module 544, and for using described PSS and/or SSS, and DMRS carries out demodulation to described transmission data.
Preferably, the pre-coding matrix that the PSS that the second receiver module 544 receives from the PRB centering of described transmission data and/or SSS are used is identical with the pre-coding matrix of the DMRS that the PRB centering from described transmission data receives.
Preferably, the antenna port that the PSS that the second receiver module 544 receives from the PRB centering of described transmission data and/or SSS are used is identical with the antenna port that the DMRS that the PRB centering from described transmission data receives is used.
In OFDM symbol corresponding to the PSS that preferably, the second receiver module 544 receives and/or SSS, being cancelled the pre-coding matrix that sends DMRS is described the first pre-coding matrix that described PSS and/or described SSS are corresponding.
As an execution mode preferably; when using single antenna port to send described PSS and/or described SSS, described the first pre-coding matrix is the second pre-coding matrix that an antenna port that described network side is selected from the right all antenna ports of described PRB is used; When using many antenna ports to send described PSS and/or described SSS, described the first pre-coding matrix is the 3rd pre-coding matrix that at least two antenna ports that described network side is selected from the right all antenna ports of described PRB are used.
Preferably, the PRB of described distribution is to referring to that described network side is the PRB couple for transmitting downlink data and/or control signal that described receiving terminal distributes, and the PRB centering of described distribution is disposed described PSS and/or described SSS.Preferably, described downlink data comprises ratio: user face data and control class signaling.
As an execution mode preferably, when using many antenna ports to send described PSS and/or described SSS, the subcarrier that carries described PSS and/or described SSS will be divided into many groups by described network side; The described PSS of described each group carrying and/or described SSS use this each organize corresponding antenna port the corresponding pre-coding matrix of DMRS carry out precoding; Wherein, the subcarrier of described each group is used different antenna ports to send, and packet count equals to send the sum of the antenna port that described PSS and/or SSS use.
Preferably, the subcarrier that carries described PSS and/or described SSS is divided into groups one of in the following manner by described network side: the numbering according to the subcarrier of the described PSS of carrying and/or described SSS is divided into groups;
PRBWei unit according to the subcarrier of the described PSS of carrying and/or described SSS divides into groups.
Preferably, described the first pre-coding matrix is identical at the pre-coding matrix of described a plurality of PRB centerings.
As an execution mode preferably, it is one of following that a described antenna port of selection comprises: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
As an execution mode preferably, described at least two antenna ports of selection comprise at least two in following antenna port: antenna port 7, antenna port 8, antenna port 9, antenna port 10.
The present embodiment provides a kind of synchro system, Fig. 7 is according to the structured flowchart of the treatment system of the synchronizing signal of the embodiment of the present invention, add shown in Fig. 7, this synchro system comprises: network side 2 and receiving terminal 4, wherein, the structure of network side 2 is as shown in Fig. 3 or 4, and the structure of receiving terminal 4, as shown in Fig. 5 or 6, does not repeat them here.
The present embodiment provides a kind of processing method of synchronizing signal, and Fig. 8 is the 3rd flow chart according to the processing method of the synchronizing signal of the embodiment of the present invention, and as shown in Figure 8, the method comprises the steps (step 5802 and step 5804).
Step S802 network side is determined the port of the DMRS that the Physical Resource Block of carrying PSS and/or SSS is right.
Step 5804 network side Physical Resource Block on PSS and/or SSS are mapped as to the signal of above-mentioned port.
Pass through above-mentioned steps, Physical Resource Block on described PSS and/or described SSS are mapped as to the signal of DMRS port, for PSS and/or SSS, adopt precoding processing, the pre-coding matrix that the DMRS that this pre-coding matrix is the right one or more antenna ports of a plurality of PRB of carrying PSS and/or SSS is used, make recipient can use PSS and/or SSS to combine for demodulating data with the DMRS of the PRB centering of carrying PSS and/or SSS, solved the poor problem of demodulation performance of the processing method of synchronizing signal in correlation technique, thereby improved the data demodulates performance of PRB centering.
For example: for new carrier wave, when new carrier wave is destroyed the DMRS on the OFDM symbol clashing with PSS and/or SSS 6 PRB centerings of centre, the PSS and/or the SSS send mode that adopt above-mentioned steps to provide, can solve the problem declining owing to destroying demodulation performance that part DMRS causes.
As an execution mode preferably, network side Physical Resource Block on PSS and/or SSS are mapped as to the signal of port one of can be in the following manner:
Mode one; Network side above-mentioned Physical Resource Block on described PSS is mapped as to the signal of one of following DMRS port: port 7, port 8, port 9, port one 0.
Mode two: network side described Physical Resource Block on described SSS is mapped as to the signal of one of following DMRS port: described port 7, described port 8, described port 9, described port one 0.
Mode three: network side described Physical Resource Block on described PSS and described SSS are mapped as to the signal of one of following DMRS port, or be mapped as the signal of two ports in following DMRS port: described port 7, described port 8, described port 9, described port one 0.
Preferably, described network side directly or is indirectly indicated master sync signal and the corresponding default port of described auxiliary synchronous signals described in receiving terminal.Compare preferably the default port-for-port 7 that described master sync signal is corresponding, the default port-for-port 8 that described auxiliary synchronous signals is corresponding; Or the default port-for-port 8 that described master sync signal is corresponding, the default port-for-port 7 that described auxiliary synchronous signals is corresponding.
As an execution mode preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, while being used as the reference signal of DMRS port with described PSS and/or SSS, the shared RE of port of described DMRS is the Resource Unit RE that described PSS and/or described SSS take, and, the sequence that the port of described DMRS is used is the sequence that described PSS and/or described SSS are used, and the port of described DMRS is one of following: port 7, port 8, port 9, port one 0.
As another execution mode preferably, the Physical Resource Block of the described PSS of carrying and/or described SSS on, described PSS and/or described SSS be during as the reference signal of DMRS port M, port N,
The RE that described DMRS port M takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The RE that described DMRS port N takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
It is one of following that described DMRS port M and DMRS port N are: port 7, port 8, port 9, port one 0, the sequence that described PSS or described SSS are used is the sequence that described DMRS port M is used.
As another execution mode preferably, described PSS and/or described SSS be during as the DMRS signal of described DMRS port M and/or described port N, the PRB that carries described PSS and/or described SSS between use identical weights to carry out precoding processing.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, when the transmission of alone family, the maximum number of layers that dispatch user data sends is less than or equal to 2; When multiuser multiplexing transmits, the number of layers that dispatch user data sends is 1, and the data of described multiuser multiplexing transmission send as DMRS port based on described PSS or described SSS.
As another execution mode preferably, described network side is indicated the distribution condition of described DMRS port and described number of layers by down control channel; Or described network side is notified described receiving terminal by high-level signaling, the distribution condition of weights information, described DMRS port and described number of layers that described PSS or described SSS are used; Or, when the PRB centering of the described PSS of carrying and/or described SSS sends enhancing Physical Downlink Control Channel, default described port numbers.
This preferred embodiment provides a kind of channel estimation methods, and Fig. 9 is according to the flow chart of the channel estimation methods of the embodiment of the present invention, and as shown in Figure 9, the method comprises following step (step 5902 and step 5904).
Step S902: receiving terminal receives PSS and/or SSS.
Step S904: receiving terminal is used this PSS and/or this SSS to carry out channel estimating; Wherein, described PSS and/or described SSS are the signal that described network side is mapped as DMRS port, and described DMRS port is the port of the right DMRS of the Physical Resource Block of the described PSS of carrying and/or described SSS.
Pass through above-mentioned steps, receiving terminal is used PSS and/or described SSS to carry out channel estimating, PSS and/or described SSS are the signal that described network side is mapped as DMRS port, and described DMRS port is the port of the right DMRS of the Physical Resource Block of the described PSS of carrying and/or described SSS, for PSS and/or SSS, adopt precoding processing, the pre-coding matrix that the DMRS that this pre-coding matrix is the right one or more antenna ports of a plurality of PRB of carrying PSS and/or SSS is used, make recipient can use PSS and/or SSS to combine for demodulating data with the DMRS of the PRB centering of carrying PSS and/or SSS, solved the poor problem of demodulation performance of the processing method of synchronizing signal in correlation technique, thereby improved the data demodulates performance of PRB centering.
Example adds: for new carrier wave, when new carrier wave is destroyed the DMRS on the OFDM symbol clashing with PSS and/or SSS 6 PRB centerings of centre, the PSS and/or the SSS send mode that adopt above-mentioned steps to provide, can solve total topic of falling under the demodulation performance that part DMRS causes owing to destroying.
When implementing, receiving terminal can be used PSS and/or SSS to carry out channel estimating in several ways, for example one of following mode:
Mode one: receiving terminal is used described PSS to carry out the channel estimating of one of following DMRS port: port 7, port 8, port 9, port one 0.
Mode two: receiving terminal is used described SSS to carry out the channel estimating of one of following DMRS port: described port 7, described port 8, described port 9, described port one 0.
Mode three: receiving terminal is used described PSS and described SSS to carry out the channel estimating of one of following DMRS port or the channel estimating of two ports in following DMRS port: described port 7, described port 8, described port 9, described port one 0.
Mode four: described receiving terminal is used described PSS or described SSS to carry out the channel estimating of described port 7.
Mode five: receiving terminal is used described PSS or described SSS to carry out the channel estimating of described port 8.
Mode six: receiving terminal is used described PSS or described SSS to carry out the channel estimating of described port 7, and use described PSS or described SSS to carry out the channel estimating of described port 8.
As another execution mode preferably, receiving terminal according to described network side directly or indirectly indication determine described master sync signal and default port corresponding to described auxiliary synchronous signals.Compare preferably the default port-for-port 7 that master sync signal is corresponding, the default port-for-port 8 that described auxiliary synchronous signals is corresponding; Or the default port-for-port 8 that described master sync signal is corresponding, the default port-for-port 7 that described auxiliary synchronous signals is corresponding.
As another execution mode preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, when the port of use DMRS carries out channel estimating, the shared RE of port of the DMRS of described receiving terminal expectation is the Resource Unit RE that described PSS and/or described SSS take, and, the sequence that the port of described DMRS is used is the sequence that described PSS and/or described SSS are used, and the port of described DMRS is one of following: port 7, port 8, port 9, port one 0.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, while using DMRS port M and DMRS port N to carry out channel estimating, the RE that described DMRS port M takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used; The RE that described DMRS port N takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used; The sequence that described PSS or described SSS are used is the sequence that described DMRS port M is used, and it is one of following that described DMRS port M and DMRS port N are: port 7, port 8, port 9, port one 0.
Preferably, when using described PSS and/or described SSS to carry out the channel estimating of described DMRS port M and described port N, the Physical Resource Block of the described receiving terminal expectation described PSS of carrying and/or described SSS is identical to precoding weights corresponding to upper DMRS.
As an execution mode preferably, the Physical Resource Block of the described PSS of carrying and/or described SSS on, when the transmission of alone family, the maximum number of layers that dispatch user data sends is less than or equal to 2; When multiuser multiplexing transmits, the number of layers that dispatch user data sends is 1, and the data of described multiuser multiplexing transmission send as DMRS port based on described PSS or described SSS.
Preferably, described receiving terminal, by receiving the Downlink Control Information of down control channel, obtains the distribution condition of described DMRS port and described number of layers; Or described receiving terminal is known by high-level signaling, the distribution condition of weights information, described DMRS port and described number of layers that described PSS or described SSS are used; Or, when the PRB centering of the described PSS of carrying and/or described SSS sends enhancing Physical Downlink Control Channel, default described port numbers.
It should be noted that, in the step shown in the flow chart of accompanying drawing, can in the computer system such as one group of computer executable instructions, carry out, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
In another embodiment, also provide a kind of process software of synchronizing signal, the technical scheme that this software is described for carrying out above-described embodiment and preferred embodiment.
In another embodiment, also provide a kind of storage medium, stored above-mentioned data transmission software in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
The embodiment of the present invention also provides a kind of processing unit of synchronizing signal, be applied to network side, the processing unit of this synchronizing signal can be for realizing processing method and the preferred implementation of above-mentioned synchronizing signal, carried out explanation, repeat no more, below the module relating in the processing unit of this synchronizing signal is described.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described system and method for following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.
Figure 10 is the 3rd structured flowchart according to the processing unit of the synchronizing channel of the embodiment of the present invention, and as shown in figure 10, this device comprises: the 5th determination module 102, the first mapping blocks 104, are described in detail said structure below.
The 5th determination module 102, for the port of the right demodulated reference signal DMRS of the Physical Resource Block of definite carrying master sync signal PSS and/or auxiliary synchronous signals SSS; The first mapping block 104, is connected to the 5th determination module 102, for described Physical Resource Block on described PSS and/or described SSS are mapped as to the signal of the definite port of the 5th determination module 102.
Figure 11 is preferred the 3rd structured flowchart according to the processing unit of the synchronizing channel of the embodiment of the present invention, and as shown in figure 11, the first mapping block 104 comprises with one of lower module: the second mapping block 1041, the three mapping block 1042, the four mapping blocks 1043; Said apparatus also comprises: the first indicating module 112, the second indicating modules 114, notification module 116, the three processing modules 118, are described in detail said structure below.
The first mapping block 104 comprises with one of lower module:
The second mapping block 1041, for described Physical Resource Block on described PSS is mapped as to the signal of one of following DMRS port: port 7, port 8, port 9, port one 0;
The 3rd mapping block 1042, for described Physical Resource Block on described SSS is mapped as to the signal of one of following DMRS port: described port 7, described port 8, described port 9, described port one 0;
The 4th mapping block 1043, for described Physical Resource Block on described PSS and described SSS are mapped as to the signal of one of following DMRS port, or be mapped as the signal of two ports in following DMRS port: described port 7, described port 8, described port 9, described port one 0.
Preferably, said apparatus also comprises: the first indicating module 112, is connected to the 5th determination module 102, for directly or indirectly indicating master sync signal and the corresponding default port of described auxiliary synchronous signals described in receiving terminal.
Preferably, the default port-for-port 7 that described master sync signal is corresponding, the default port-for-port 8 that described auxiliary synchronous signals is corresponding; Or, the default port-for-port 8 that described master sync signal is corresponding, the default port-for-port 7 that described auxiliary synchronous signals is corresponding.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, while being used as the reference signal of DMRS port with described PSS and/or SSS, the shared RE of port of described DMRS is the Resource Unit RE that described PSS and/or described SSS take, and, the sequence that the port of described DMRS is used is the sequence that described PSS and/or described SSS are used, and the port of described DMRS is one of following: port 7, port 8, port 9, port one 0.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, described PSS and/or described SSS be during as the reference signal of DMRS port M, port N,
The RE that described DMRS port M takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The RE that described DMRS port N takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
It is one of following that described DMRS port M and DMRS port N are: port 7, port 8, port 9, port one 0, the sequence that described PSS or described SSS are used is the sequence that described DMRS port M is used.
Preferably, described PSS and/or described SSS be during as the DMRS signal of described DMRS port M and/or described port N, the PRB that carries described PSS and/or described SSS between use identical weights to carry out precoding processing.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on,
When the transmission of alone family, the maximum number of layers that dispatch user data sends is less than or equal to 2;
When multiuser multiplexing transmits, the number of layers that dispatch user data sends is 1, and the data of described multiuser multiplexing transmission send as DMRS port based on described PSS or described SSS.
Preferably, said apparatus also comprises: the second indicating module 114, is connected to the 5th determination module 102, for indicate the distribution condition of described DMRS port and described number of layers by down control channel; Or,
Notification module 116, is connected to the 5th determination module 102, for notify described receiving terminal by high-level signaling, and the distribution condition of weights information, described DMRS port and described number of layers that described PSS or described SSS are used; Or,
The 3rd processing module 118, is connected to the 5th determination module 102, while sending enhancing Physical Downlink Control Channel for the PRB centering at the described PSS of carrying and/or described SSS, and default above-mentioned port numbers.
In another embodiment, also provide a kind of channel estimating software, the technical scheme that this software is described for carrying out above-described embodiment and preferred embodiment.
In another embodiment, also provide a kind of storage medium, stored above-mentioned channel estimating software in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
The embodiment of the present invention also provides a kind of channel estimating apparatus, be applied to receiving terminal, the processing unit of this synchronizing signal can be for realizing processing method and the preferred implementation of above-mentioned synchronizing signal, carried out explanation, repeat no more, below the module relating in this channel estimating apparatus is described.As used below, " module ' can realize the combination of software and/or the hardware of predetermined function to term.Although the described system and method for following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.
Figure 12 is according to the structured flowchart of the channel estimating apparatus of the embodiment of the present invention, and as shown in figure 12, this device comprises: the 3rd receiver module 122 and the first channel estimation module 124, be described in detail said structure below.
The 3rd receiver module 122, for receiving master sync signal PSS and/or auxiliary synchronous signals SSS; The first channel estimation module 124, is connected to the 3rd receiver module 122, for using PSS and/or the SSS that the 3rd receiver module 122 receives to carry out channel estimating; Wherein, described PSS and/or described SSS are the signal that described network side is mapped as DMRS port, and described DMRS port is the port of the right DMRS of the Physical Resource Block of the described PSS of carrying and/or described SSS.
Figure 13 is the preferred structured flowchart according to the channel estimating apparatus of the embodiment of the present invention, as shown in figure 13, the first channel estimation module 124 comprises one of following module: second channel estimation module 1241, the 3rd channel estimation module 1242, the 4th channel estimation module 1243, the 5th channel estimation module 1244, the 6th channel estimation module 1245, the 8th channel estimation module 1246, said apparatus also comprises: the first acquisition module 134, the second acquisition module 136, presetting module 138, is described in detail said structure below.
The first channel estimation module 124 comprises one of following module:
Second channel estimation module 1241, for using described PSS to carry out the channel estimating of one of following DMRS port:
Port 7, port 8, port 9, port one 0;
The 3rd channel estimation module 1242, for using described SSS to carry out the channel estimating of one of following DMRS port:
Described port 7, described port 8, described port 9, described port one 0;
The 4th channel estimation module 1243, for using described PSS and described SSS to carry out the channel estimating of one of following DMRS port or the channel estimating of two ports in following DMRS port:
Described port 7, described port 8, described port 9, described port one 0;
The 5th channel estimation module 1244, for being used described PSS or described SSS to carry out the channel estimating of described port 7;
The 6th channel estimation module 1245, for being used described PSS or described SSS to carry out the channel estimating of described port 8;
The 8th channel estimation module 1246, for using described PSS or described SSS to carry out the channel estimating of described port 7, and is used described PSS or described SSS to carry out the channel estimating of described port 8.
Preferably, said apparatus also comprises: the 6th determination module 132, and for directly or indirectly indicating and determine described master sync signal and default port corresponding to described auxiliary synchronous signals according to described network side.
Preferably, the default port-for-port 7 that described master sync signal is corresponding, the default port-for-port 8 that described auxiliary synchronous signals is corresponding; Or the default port-for-port 8 that described master sync signal is corresponding, the default port-for-port 7 that described auxiliary synchronous signals is corresponding.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, when the port of use DMRS carries out channel estimating, the shared RE of port of the DMRS of described receiving terminal expectation is the Resource Unit RE that described PSS and/or described SSS take, and, the sequence that the port of described DMRS is used is the sequence that described PSS and/or described SSS are used, and the port of described DMRS is one of following: port 7, port 8, port 9, port one 0.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, while using DMRS port M and DMRS port N to carry out channel estimating,
The RE that described DMRS port M takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The RE that described DMRS port N takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The sequence that described PSS or described SSS are used is the sequence that described DMRS port M is used, and it is one of following that described DMRS port M and DMRS port N are: port 7, port 8, port 9, port one 0.
Preferably, when using described PSS and/or described SSS to carry out the channel estimating of described DMRS port M and described port N, the Physical Resource Block of the described receiving terminal expectation described PSS of carrying and/or described SSS is identical to precoding weights corresponding to upper DMRS.
Preferably, the Physical Resource Block of carrying described PSS and/or described SSS on, when the transmission of alone family, the maximum number of layers that dispatch user data sends is less than or equal to 2; When multiuser multiplexing transmits, the number of layers that dispatch user data sends is 1, and the data of described multiuser multiplexing transmission send as DMRS port based on described PSS or described SSS.
Preferably, said apparatus also comprises:
The first acquisition module 134, is connected to the 3rd receiver module 122, for by receiving the Downlink Control Information of down control channel, obtains the distribution condition of described DMRS port and described number of layers; Or,
The second acquisition module 136, is connected to the 3rd receiver module 122, for knowing by high-level signaling, and the distribution condition of weights information, described DMRS port and described number of layers that described PSS or described SSS are used; Or,
Presetting module 138, is connected to the 3rd receiver module 122, while sending enhancing Physical Downlink Control Channel for the PRB centering at the described PSS of carrying and/or described SSS, and default described port numbers.
The present embodiment provides a kind of synchro system, Figure 14 is the second structured flowchart according to the treatment system of the synchronizing signal of the embodiment of the present invention, as shown in figure 14, this synchro system comprises: network side 6 and receiving terminal 8, wherein, the structure of network side 6 is as shown in Figure 10 or 11, and the structure of receiving terminal 8, as shown in Figure 12 or 13, does not repeat them here.
Preferred embodiment one
Configuration and sending method that this preferred embodiment provides a kind of synchronizing signal, realize the transmission of synchronizing signal, and what this preferred embodiment was described is the situation of single antenna port.
In this preferred embodiment, base station side is carried out following steps: network side carries out precoding to PSS and/or SSS, then the PSS after precoding and/or SSS is sent.In this step, the pre-coding matrix that precoding adopts is: the pre-coding matrix that the DMRS of 1 antenna port in a plurality of antenna ports of a plurality of PRB centerings of carrying PSS and/or SSS is used, wherein, the DMRS of this 1 antenna port, all has use the plurality of PRB centering.
Preferably, the pre-coding matrix that the DMRS of this 1 antenna port is used is identical at the pre-coding matrix of the plurality of PRB centering.
As an execution mode preferably, the compatibility of processing in order to realize signal, this 1 antenna port comprises port 7, port 8, port 9 or port one 0.
When implementing, in order to improve the accuracy of transmission, corresponding to different duplex modes, can to PSS and/or SSS, process in different ways.
Example 1: in FDD mode, during standard C P configuration, network side sends the PSS of precoding processing on the symbol #6 of subframe #0 and #5, sends the SSS of precoding processing on the symbol #5 of subframe #0 and #5.
(2), in TDD mode, during standard C P configuration, network side sends the SSS of precoding processing on the symbol #13 of subframe #0 and #5, sends the PSS of precoding processing on the symbol #2 of subframe #1 and #6.
Preferably; in example 1; corresponding to different duplex modes, can be handled as follows above-mentioned subframe #0 or #5: when FDD mode and standard C P configuration, network side stops configuration and sends DMRS in the OFDM symbol #5 of the PRB centering of carrying PSS and/or SSS and #6 resource; When TDD mode and standard C P configuration, network side stops configuration and sends DMRS in the OFDM symbol #13 resource of the PRB centering of carrying SSS.
Example 2: in FDD mode or TDD mode, during standard C P configuration, network side sends precoding processing PSS on the symbol #3 of subframe #0 and #5, sends the SSS of precoding processing on the symbol #2 of subframe #0 and #5.
Example 3: under FDD mode or TDD mode, during standard C P configuration, network side sends precoding processing PSS on the symbol #8 of subframe #0 and #5, sends the SSS of precoding processing on the symbol #1 of subframe #0 and #5.
Example 4: in FDD mode, during standard C P configuration, network side sends precoding processing PSS on the symbol #8 of subframe #0 and #5, sends the SSS of precoding processing on the symbol #3 of subframe #0 and #5; In TDD mode, during standard C P configuration, network side sends the SSS of precoding processing on the symbol #8 of subframe #0 and #5, sends the PSS of precoding processing on the symbol #0 of subframe #1 and #6.
As another execution mode preferably, receiving terminal (UE) determines that network side is the PRB couple of the transmission data of oneself distributing, if send the PRB of data to the PRB centering at this PSS of carrying and/or SSS, the PRB centering that receiving terminal sends data from this receives the data of oneself, receive DMRS and the synchronizing signal (PSS and/or SSS) of the PRB centering of these transmission data, and to use synchronizing signal (PSS and/or SSS) and the DMRS that the PRB centering of these transmission data receives be data demodulates simultaneously simultaneously.
Than preferably, one of can be in the following way determine pre-coding matrix: the pre-coding matrix that the PSS that (1) receiving terminal acquiescence receives from described PRB centering and/or SSS are used is identical with the pre-coding matrix of the DMRS receiving from described PRB centering; (2) antenna port that the PSS that receiving terminal acquiescence receives from above-mentioned PRB centering and/or SSS are used is identical with the antenna port that the DMRS receiving from above-mentioned PRB centering is used; (3) receiving terminal acquiescence receives in OFDM symbol PSS and/or SSS are used the pre-coding matrix that is stopped the DMRS of transmission in this OFDM symbol to carry out precoding.
Preferably, receiving terminal carries out combined decoding to the data that receive with the synchronizing signal (PSS and/or SSS) and the DMRS that receive.
In this preferred embodiment, the step of carrying out corresponding to base station side, UE side is carried out and is added lower step: receiving terminal (UE) receives PSS and/or the SSS that the PRB centering of distributing is carried out precoding processing, and the downlink data of the PRB centering of distributing for demodulation.
In order to improve the accuracy of demodulation, the PRB of above-mentioned distribution is to referring to that network side is the PRB couple for transmitting downlink data or control signal that UE distributes, and this PRB centering carries PSS and/or SSS.
As an execution mode preferably, above-mentioned receiving terminal is used single antenna port to receive, and wherein, this single antenna port be to arrange in advance, can be port 7, port 8, port 9 or port one 0 one.
Preferably, the pre-coding matrix that above-mentioned precoding is used is: carry the pre-coding matrix that the DMRS of 1 antenna port in a plurality of antenna ports of a plurality of PRB centerings of described PSS and/or SSS is used.Preferably, the DMRS of above-mentioned 1 antenna port is for all to have use a plurality of PRB centerings, and pre-coding matrix used is identical for ratio.
When implementing, in order to improve the efficiency of data processing, above-mentioned downlink data comprises, user face data and control class signaling.
As another execution mode preferably, receiving terminal determines that network side is the PRB couple of the transmission data of oneself distributing, if the PRB of above-mentioned transmission data is to the PRB centering at the above-mentioned PSS of carrying and/or SSS, receiving terminal is the data to reception being oneself from the PRB of above-mentioned transmission data, receive synchronizing signal (PSS and/or SSS) and the DMRS of the PRB centering of these transmission data, and to use synchronizing signal (PSS and/or SSS) and the DMRS that the PRB centering of these transmission data receives be data demodulates simultaneously simultaneously.
Than preferably, one of can be in the following way determine pre-coding matrix: the pre-coding matrix that the PSS that (1) receiving terminal acquiescence receives from above-mentioned PRB centering and/or SSS are used is identical with the pre-coding matrix of the DMRS receiving from above-mentioned PRB centering; (2) antenna port that the PSS that receiving terminal acquiescence receives from above-mentioned PRB centering and/or SSS are used is identical with the antenna port that the DMRS receiving from above-mentioned PRB centering is used; (3) receiving terminal acquiescence receives in OFDM symbol PSS and/or SSS are used the pre-coding matrix that is stopped the DMRS of transmission in this OFDM symbol to carry out precoding.
Preferred embodiment two
Configuration and sending method that this preferred embodiment provides a kind of synchronizing signal, realize the transmission of synchronizing signal, and what this preferred embodiment was described is the situation of many antenna ports.
In this preferred embodiment, base station side is carried out following steps: network side carries out precoding to PSS and/or SSS, then sends.Wherein, the pre-coding matrix that precoding adopts is, the pre-coding matrix that the DMRS of at least 2 antenna ports in a plurality of antenna ports of a plurality of PRB centerings of carrying PSS and/or SSS is used.Wherein, the DMRS of described at least 2 antenna ports, all has use described a plurality of PRB centerings.
Preferably, the pre-coding matrix that the DMRS of these at least 2 antenna ports is used is identical at the pre-coding matrix of above-mentioned a plurality of PRB centerings.
As an execution mode preferably, the compatibility of processing in order to realize signal, these at least 2 antenna ports comprise the combination of at least 2 ports in port 7, port 8, port 9, port one 0.
When implementing, in order to improve the accuracy of transmission, corresponding to different duplex modes, can to PSS and/or SSS, process in different ways.
Example 5: in FDD mode, during standard C P configuration, network side sends the PSS of precoding processing on the symbol #6 of subframe #0 and #5, sends the SSS of precoding processing on the symbol #5 of subframe #0 and #5.
(2), in TDD mode, during standard C P configuration, network side sends the SSS of precoding processing on the symbol #13 of subframe #0 and #5, sends the PSS of precoding processing on the symbol #2 of subframe #1 and #6.
Preferably; in example 5; corresponding to different duplex modes, can be handled as follows above-mentioned subframe #0 or #5: when FDD mode and standard C P configuration, network side stops configuration and sends DMRS in the OFDM symbol #5 of the PRB centering of carrying PSS and/or SSS and #6 resource; When TDD mode and standard C P configuration, network side stops configuration and sends DMRS in the OFDM symbol #13 resource of the PRB centering of carrying SSS.
Example 6: in FDD mode or TDD mode, during standard C P configuration, network side sends precoding processing PSS on the symbol #3 of subframe #0 and #5, sends the SSS of precoding processing on the symbol #2 of subframe #0 and #5.
Example 7: under FDD mode or TDD mode, during standard C P configuration, network side sends precoding processing PSS on the symbol #8 of subframe #0 and #5, sends the SSS of precoding processing on the symbol #1 of subframe #0 and #5.
Example 8: in FDD mode, during standard C P configuration, network side sends precoding processing PSS on the symbol #8 of subframe #0 and #5, sends the SSS of precoding processing on the symbol #3 of subframe #0 and #5; In TDD mode, during standard C P configuration, network side sends the SSS of precoding processing on the symbol #8 of subframe #0 and #5, sends the PSS of precoding processing on the symbol #0 of subframe #1 and #6.
As another execution mode preferably, receiving terminal determines that network side is the PRB couple of the transmission data of oneself distributing, if this PRB that states transmission data is to the PRB centering at this PSS of carrying and/or SSS, the PRB centering that receiving terminal sends data from this receives the data of oneself, receive synchronizing signal (PSS and/or SSS) and the DMRS of the PRB centering of these transmission data, and to use synchronizing signal (PSS and/or SSS) and the DMRS that the PRB centering of these transmission data receives be data demodulates simultaneously simultaneously.
Than preferably, for receiving terminal, the pre-coding matrix that the PSS receiving from port above-mentioned PRB centering and/or SSS are used is identical with the pre-coding matrix of the DMRS receiving from described port described PRB centering.
As another execution mode preferably, before PSS and/or SSS are carried out to precoding, also comprise: the subcarrier of carrying PSS and/or SSS is divided into groups, the subcarrier of every group is used different antenna ports to send, and uses the pre-coding matrix corresponding to DMRS of this antenna port to carry out precoding to this group transmission PSS and/or SSS.Preferably, packet count equals to send the antenna port number of PSS and/or SSS use.
Than preferably, can adopt various ways to divide into groups.
For example: mode one: with subcarrier number grouping, the subcarrier of carrying PSS and/or SSS is divided into a plurality of groups, the subcarrier that is odd number comprising subcarrier number is divided into one group, and the subcarrier that subcarrier number is even number is divided into one group;
Mode two: YiPRBDui Wei unit divides into groups, by the PRB of carrying PSS and/or SSS to being divided into a plurality of groups.
In this preferred embodiment, the step of carrying out corresponding to base station side, UE side is carried out following steps: receiving terminal (UE) is used more than 2 or 2 antenna ports to receive by the PSS of precoding processing and/or SSS from the PRB centering of distributing, and the downlink data of the PRB centering of distributing for demodulation.
In order to improve the accuracy of demodulation, the PRB of above-mentioned distribution is to referring to that network side is the PRB couple for transmitting downlink data or control signal that UE distributes, and this PRB centering carries PSS and/or SSS.
As an execution mode preferably, above-mentioned receiving terminal is used single antenna port to receive, and wherein, this single antenna port be to arrange in advance, can be port 7, port 8, port 9 or port one 0 one.
Preferably, the pre-coding matrix that above-mentioned precoding is used is: carry the pre-coding matrix that the DMRS of at least 2 antenna ports in a plurality of antenna ports of a plurality of PRB centerings of described PSS and/or SSS is used.Preferably, the DMRS of at least 2 antenna ports all has use described a plurality of PRB centerings to ratio, and pre-coding matrix used is identical.
When implementing, in order to improve the efficiency of data processing, above-mentioned downlink data comprises: user face data and control class signaling.
As another execution mode preferably, receiving terminal determines that network side is the PRB couple of the transmission data of oneself distributing, if the PRB of above-mentioned transmission data is to the PRB centering at the above-mentioned PSS of carrying and/or SSS, receiving terminal is the data to reception being oneself from the PRB of above-mentioned transmission data, receive synchronizing signal (PSS and/or SSS) and the DMRS of the PRB centering of these transmission data, and to use synchronizing signal (PSS and/or SSS) and the DMRS that the PRB centering of these transmission data receives be data demodulates simultaneously simultaneously.Compare preferably, receiving terminal, the pre-coding matrix that the PSS receiving from different port above-mentioned PRB centering and/or SSS are used is identical with the pre-coding matrix of the DMRS receiving from corresponding ports described PRB centering.
As another execution mode preferably, before PSS and/or SSS are carried out to precoding, also comprise: the subcarrier of carrying PSS and/or SSS is divided into groups, the subcarrier of every group is used different antenna ports to send, and uses the pre-coding matrix corresponding to DMRS of this antenna port to carry out precoding to this group transmission PSS and/or SSS.Preferably, packet count equals to send the antenna port number of PSS and/or SSS use.
Than preferably, can adopt various ways to divide into groups.
For example: mode one: with subcarrier number grouping, the subcarrier of carrying PSS and/or SSS is divided into a plurality of groups, the subcarrier that is odd number comprising subcarrier number is divided into one group, and the subcarrier that subcarrier number is even number is divided into one group;
Mode two: YiPRBDui Wei unit divides into groups, by the PRB of carrying PSS and/or SSS to being divided into a plurality of groups.
Preferred embodiment three
This preferred embodiment provides configuration, the sending method of a kind of synchronizing signal as demodulated reference signal, the method comprises: network side sends subframe in synchronizing signal, and on the Physical Resource Block of carrying synchronizing signal, master sync signal and/or auxiliary synchronous signals are mapped as to the port of demodulated reference signal.
When implementing, can in several ways synchronizing signal be mapped as to demodulated reference signal.The method that for example master sync signal and/or auxiliary synchronous signals is mapped as to demodulated reference signal at least comprises one of following mode:
Master sync signal is mapped as to some in demodulated reference signal port 7,8,9,10.
Auxiliary synchronous signals is mapped as to some in demodulated reference signal port 7,8,9,10.
Master sync signal and auxiliary synchronous signals are mapped as to certain two in demodulated reference signal port 7,8,9,10.
Master sync signal and auxiliary synchronous signals are mapped as some in demodulated reference signal port 7,8,9,10 simultaneously.
Wherein, the indication information that receiving terminal side Network Based sends or the default configuration of standard are determined the port that master sync signal, auxiliary synchronous signals are used.During this default configuration, preferred port 7 is master sync signal; Preferred port 8 is auxiliary synchronous signals.
As an execution mode preferably, in above-mentioned synchronizing signal, send subframe, and the Physical Resource Block of carrying synchronizing signal, when sending based on demodulated reference signal port, the RE that demodulated reference signal port takies is the RE for main or auxiliary synchronous signals, and described port sequence used is main or sequence corresponding to auxiliary synchronous signals.Wherein, described demodulated reference signal port is from port 7,8,9,10.
As another execution mode preferably, in above-mentioned synchronizing signal, send subframe, and the Physical Resource Block of carrying synchronizing signal, when based on demodulated reference signal port M and port N transmission, the RE that demodulated reference signal port M takies is the RE for master sync signal (or auxiliary synchronous signals), and described port M sequence used is the sequence that master sync signal (or auxiliary synchronous signals) is corresponding.The RE that demodulated reference signal port N takies is the RE for auxiliary synchronous signals (or master sync signal), and described port N sequence used is the sequence that auxiliary synchronous signals (or master sync signal) is corresponding.Wherein, M and N all select one from port 7,8,9,10, and can be identical.
When implementing, the precision of processing in order to improve signal, when main and/or auxiliary synchronous signals are used as the demodulated reference signal of port M and/or port N, in synchronizing signal, send subframe, and adopt identical weights to carry out precoding processing between the Physical Resource Block of carrying synchronizing signal.
As another execution mode preferably, in synchronizing signal, send subframe, and on the Physical Resource Block of carrying synchronizing signal, during the transmission of alone family, the maximum number of layers that restriction dispatch user data sends is no more than 2.In synchronizing signal, send subframe, and on the Physical Resource Block of carrying synchronizing signal, during multiuser multiplexing transmission, limiting each dispatched users number of layers is 1, and based on primary/secondary synchronizing signal, as demodulated reference signal port, sends respectively.
In above preferred embodiment, network side is indicated the distribution condition of described port and number of layers by the Downlink Control Information of down control channel.Network side is notified UE by high-level signaling, the distribution condition of weights information, port and the number of plies that PSS/SSS is used.When the PRB centering of or auxiliary synchronous signals main in carrying sends enhancing Physical Downlink Control Channel (ePDCCH), described port numbers can arrange to solidify in advance.
Preferred embodiment four
This preferred embodiment provides UE side (receiving terminal) receiving handling method of a kind of synchronizing signal as the configuration of demodulated reference signal, the method is corresponding to the network side of above preferred embodiment three, for receiver side, carry out following operation: in synchronizing signal, send subframe, and on the Physical Resource Block of carrying synchronizing signal, terminal (receiver side or UE) is carried out the required channel estimating of data demodulates based on main and/or auxiliary synchronous signals.
As an execution mode preferably, with master sync signal and/or auxiliary synchronous signals, carry out one of at least following mode of the required channel estimating of data demodulates:
To lead the channel estimating that (or auxiliary) synchronizing signal is used as demodulated reference signal port 7;
Auxiliary (or main) synchronizing signal is used as to the channel estimating of demodulated reference signal port 8;
To lead the channel estimating that (or auxiliary) synchronizing signal is used as demodulated reference signal port 7, auxiliary (or main) synchronizing signal will be used as to the channel estimating of demodulated reference signal port 8;
Master sync signal is used as to the some channel estimating in demodulated reference signal port 7,8,9,10;
Master sync signal is used as to the some channel estimating in demodulated reference signal port 7,8,9,10;
Master sync signal and auxiliary synchronous signals are used as to the channel estimating of certain two port in demodulated reference signal port 7,8,9,10;
Master sync signal and auxiliary synchronous signals are used as the some channel estimating in demodulated reference signal port 7,8,9,10 simultaneously;
Wherein, the indication information that receiving terminal side Network Based sends or the default configuration of standard are determined the port that master sync signal, auxiliary synchronous signals are used.During above-mentioned default configuration, preferred port 7 is master sync signal; Preferred port 8 is auxiliary synchronous signals.
As an execution mode preferably, in synchronizing signal, send subframe, and on the Physical Resource Block of carrying synchronizing signal, when carrying out channel estimating based on demodulated reference signal port, the RE that UE expectation demodulated reference signal port takies is the RE for master sync signal (or auxiliary synchronous signals), and described port sequence used is the sequence that master sync signal (or auxiliary synchronous signals) is corresponding.Wherein, above-mentioned demodulated reference signal port is from port 7,8,9,10.
As another execution mode preferably, in above-mentioned synchronizing signal, send subframe, and the Physical Resource Block of carrying synchronizing signal, when carrying out channel estimating based on demodulated reference signal port M and port N, the RE that UE potential solution demodulated reference signal port M takies is the RE for master sync signal (or auxiliary synchronous signals), and described port M sequence used is the sequence that master sync signal (or auxiliary synchronous signals) is corresponding.The RE that demodulated reference signal port N takies is the RE for auxiliary synchronous signals (or master sync signal), and described port N sequence used is the sequence that auxiliary synchronous signals (or master sync signal) is corresponding.Wherein, M and N all select one from port 7,8,9,10, and can be identical.
Preferably, in above-mentioned synchronizing signal, send subframe, and on the Physical Resource Block of carrying synchronizing signal, when UE is used as the channel estimating of port M and/or port N based on main and/or auxiliary synchronous signals, UE expects that the precoding weights that on above-mentioned Physical Resource Block, demodulated reference signal is corresponding are identical.Wherein, M and N all select one from port 7,8,9,10, and can be identical.
As an execution mode preferably, in above-mentioned synchronizing signal, send subframe, and on the Physical Resource Block of carrying synchronizing signal, the number of layers of UE expected data transmission is less than or equal to 2.
Preferably, terminal (receiving terminal) receives Downlink Control Information by down control channel, and obtains the occupation mode of number of layers and demodulated reference signal port; Or network side is notified UE by high-level signaling, the distribution condition of weights information, port and the number of plies that PSS/SSS is used; Or when the PRB centering of or auxiliary synchronous signals main in carrying sends ePDCCH, described port numbers can be arranged in advance.
Preferred embodiment five
Configuration and sending method that this preferred embodiment provides a kind of synchronizing signal, realize the transmission of synchronizing signal, and what this preferred embodiment was described is the situation of single antenna port.
In this preferred embodiment, network side carries out precoding to sent PSS, SSS or (PSS and SSS), then uses single antenna port to send.The pre-coding matrix that the DMRS that the matrix of above-mentioned employing while carrying out precoding is some antenna ports of a plurality of PRB centerings of carrying PSS and/or SSS is used; Wherein, the DMRS of above-mentioned certain 1 antenna port, all has configuration to use described a plurality of PRB centerings, and the pre-coding matrix identical (above-mentioned pre-coding matrix and precoding weights are equivalent) using above-mentioned a plurality of PRB centerings.
As an execution mode preferably, the PSS that carries out precoding processing or SSS or PSS and SSS for sending can select one from following antenna port 7, antenna port 8, antenna port 9, antenna port 10.Or can arrange in advance, for example network side and receiving terminal arrange to use some in above-mentioned port by standardization agreement.
As another execution mode preferably, also can be configured by signaling, for example, the PRB that network side is used carrying PSS and/or SSS in scheduling is when being receiving terminal, network side can notify the PRB of receiving terminal scheduling to antenna port information and the pre-coding matrix information used, now, according to the above-mentioned PSS providing and/or SSS allocating pre-coding matrix, antenna port and DMRS information, just can know when PSS and/or SSS transmit the antenna port of use and pre-coding matrix.
When implementing, when network side be the receiving terminal transmission data of distributing PRB to be carrying PSS and/or SSS PRB to time, receiving terminal receives the data of oneself from the PRB centering of described transmission data, receive PSS and/or SSS, the DMRS of the PRB centering of described transmission data, and the PSS receiving described in simultaneously using and/or SSS and DMRS are data demodulates simultaneously.Now, the pre-coding matrix that the PSS that receiving terminal acquiescence receives described PRB centering and/or SSS are used is identical with the DMRS pre-coding matrix that described PRB centering receives.The PSS that receiving terminal acquiescence receives described PRB centering and/or SSS are used the antenna port using with the DMRS receiving from described PRB centering identical.
Preferably, network side and receiving terminal are the PRB centering of carrying PSS and/or SSS, and when the DMRS in OFDM symbol wherein and PSS and/or SSS resource contention, network side stops sending DMRS, and receiving terminal thinks that network side does not send DMRS in described resource.
Preferably, receiving terminal receives the PRB centering of carrying PSS and/or SSS PSS and/or SSS, DMRS combine for demodulation user data and control signal.For example: receiving terminal can be regarded described PSS and/or SSS as the DMRS that is stopped transmission and use it.Concrete use, can only be used PSS and/or the SSS in same sub-carrier with the DMRS receiving of PRB centering from carrying PSS and/or SSS, now this part PSS and/or SSS is equal to stop sending DMRS and use it.Or by the PSS receiving and/or SSS all for data demodulates.
Preferred embodiment six
Configuration and sending method that this preferred embodiment provides a kind of synchronizing signal, realize the transmission of synchronizing signal, and what this preferred embodiment was described is the situation of single antenna port.
In this preferred embodiment, network side carries out precoding to sent PSS or SSS or PSS and SSS, then uses single antenna port to send.The pre-coding matrix that the DMRS that the matrix of described employing while carrying out precoding is an antenna port of a plurality of PRB centerings of carrying PSS and/or SSS is used.Wherein, the DMRS of described 1 antenna port, all has configuration to use described a plurality of PRB centerings, and the pre-coding matrix using described a plurality of PRB centerings is different.
For said method, because the pre-coding matrix difference of using described a plurality of PRB centerings will inevitably affect the performance that UE surveys PSS and/or SSS, but it is more approaching to add the described pre-coding matrix value of fruit, the performance of PSS and/or SSS of impact survey to(for) UE also can be smaller, the enforcement that is now also fine.Now for UE, utilize the performance of PSS and/or SSS and DMRS joint demodulation data to promote to some extent, network side can configure suitable pre-coding matrix above-mentioned a plurality of PRB centerings according to actual conditions, thereby the demodulation performance of UE is promoted.
When implementing, can determine the position that sends PSS and/or SSS according to system configuration, for example
Mode one: for LTE FDD system, if while using standard C P configuration, network side sends by the PSS of precoding processing at the symbol #6 of subframe #0 and #5 (symbol number in subframe starts from #0), and/or on the symbol #5 of subframe #0 and #5, sends the SSS of precoding processing.The frequency domain of PSS and/or SSS is still carried out according to existing LTE R8 agreement.Now carry in the symbol #5 of PRB centering of PSS and/or SSS and #6 and stop sending DMRS.For LTE TDD system, if while using standard C P configuration, network side sends the SSS of precoding processing on the symbol #13 of subframe #0 and #5, and/or sends the SSS of precoding processing on the symbol #2 of subframe #1 and #6.The DMRS now carrying in the symbol #13 of PRB centering of PSS stops sending, if the PRB centering of carrying SSS is originally disposed DMRS, equally also needs to stop to send.
Mode two: in LTE FDD or TDD system, and during configuration standard CP, network is at the upper transmission of symbol (the referring to OFDM symbol) #3 of subframe #0 and #5 precoding processing PSS, and/or on the symbol #2 of subframe #0 and #5, send the SSS of precoding processing.Now, for FDD system, on the right symbol #5 of the PRB of carrying PSS and/or SSS and #6, send DMRS.For TDD system, on the right symbol #13 of the PRB of carrying SSS, send DMRS.
Mode three: in LTE FDD or TDD system, when configuration standard CP, network side sends the PSS of precoding processing on the symbol #8 of subframe #0 and #5, and/or sends the SSS of precoding processing on the symbol #1 of subframe #0 and #5.Now, for FDD system, network side sends DMRS on the right symbol #5 of the PRB of carrying PSS and/or SSS and #6.For TDD grid side, in the right symbol #13 of the PRB of carrying SSS, send DMRS.
Mode four: in LTE FDD system, during configuration standard CP, network side sends the PSS of precoding processing on the symbol #8 of subframe #0 and #5, and/or sends the SSS of precoding processing on the symbol #3 of subframe #0 and #5.Now in the symbol #5 of the PRB centering of carrying PSS and/or SSS and #6, send DMRS.In LTE TDD system, during configuration standard CP, network side sends the SSS of precoding processing on the symbol #8 of subframe #0 and #5, and/or on the symbol #0 of subframe #1 and #6, sends the PSS of precoding processing.Now, in the symbol #13 of PRB centering that carries SSS, send DMRS.
Preferred embodiment seven
Configuration and sending method that this preferred embodiment provides a kind of synchronizing signal, realize the transmission of synchronizing signal, and what this preferred embodiment was described is the situation of single antenna port.In the present embodiment, describe the processing method of receiving terminal, receiving terminal comprises the equipment that receives network side synchronizing signal, such as: mobile phone, via node, small cell etc.
In the present embodiment, the PRB centering that receiving terminal receive to distribute is carried out PSS and/or the SSS of precoding processing, and for the downlink data of the PRB centering of distributing described in demodulation.The PRB of distribution described here is to referring to that network side is the RPB couple for transmitting downlink data or control signal that UE distributes, and this PRB centering has PSS and/or SSS configuration to send.Wherein, data refer to the data of transmitting by PDSCH, and control signal mainly refers to ePDCCH signaling.Receiving terminal is used single antenna port to receive, and wherein single antenna port can be arranged in advance, and is specially port 7 or port 8 or port 9 or port one 0.
In the present embodiment, receiving terminal is thought for the PSS of precoding processing and/or SSS, the pre-coding matrix that the pre-coding matrix that wherein used is used for carrying the DMRs of some antenna ports of a plurality of PRB centerings of described PSS and/or SSS, the DMRs of this port has use the PRB centering of carrying PSS and/or SSS, and pre-coding matrix used is identical.
Preferably, receiving terminal is the PRB couple of the transmission downlink data that oneself distributes according to network side, if described PRB is to being the PRB couple of the described PSS of carrying and/or SSS, receiving terminal is during from described PRB centering downlink data receiving, receive PSS and/or SSS, DMRS wherein, and use receives simultaneously PSS and/or SSS, DMRS are downlink data demodulation simultaneously.Wherein, the pre-coding matrix that the PSS that receiving terminal acquiescence receives from described PRB centering and/or SSS are used is identical with the pre-coding matrix of the DMRS receiving from described PRB centering, and antenna port is identical, and the OFDM symbol of described PRB centering carrying PSS and/or SSS stops sending DMRS.
Preferred embodiment eight
Configuration and sending method that this preferred embodiment provides a kind of synchronizing signal, realize the transmission of synchronizing signal, and this preferred embodiment is described is to use 2 or 2 above antenna ports to send the situation of PSS and/or SSS.
Method in this preferred embodiment comprises: network side carries out precoding to PSS and/or SSS, then send, wherein above-mentioned precoding adopts the pre-coding matrix that the DMRS of certain 2 or 2 above motion ports of a plurality of PRB centerings that pre-coding matrix is carrying PSS and/or SSS is used.Wherein, the DMRS of described certain 2 or 2 above sky ports, all has use and identical at the pre-coding matrix of described a plurality of PRB centerings described a plurality of PRB centerings.Wherein, described more than 2 or 2 antenna ports are combined by port 7, port 8, port 9, port one 0 configuration.
For receiving terminal, the pre-coding matrix that the PSS that definite (thinking) receives from port described PRB centering and/or SSS are used is identical with the pre-coding matrix of the DMRS receiving from described port described PRB centering.For example receiving terminal is from described PRB centering, and the DMRS that the pre-coding matrix that the PSS receiving from port 7 and/or SSS are used receives from port 7 with described PRB centering is used pre-coding matrix identical.
Preferably, for PSS and/or SSS, carry out precoding, the subcarrier of carrying PSS and/or SSS can be divided into groups, the subcarrier of every group is used different antenna ports to send, and uses the pre-coding matrix corresponding to DMRS of this antenna port to carry out precoding to organizing the PSS and/or the SSS that send in subcarrier.For concrete grouping, the subcarrier of carrying PSS and/or SSS is divided into a plurality of groups, what wherein subcarrier number was odd number is divided into one group, and what subcarrier number was even number is divided into one group.Or YiPRBDui Wei unit divides into groups, by the PRB of carrying PSS and/or SSS to being divided into a plurality of groups.Described grouping, wherein the quantity of grouping is less than or equal to the antenna port quantity that sends PSS and/or use.
Preferably, situation for PSS and/or the SSS of many days ports, receiving terminal determines that network side is the PRB couple of the transmission data of oneself distributing, if described PRB is to being to carry described PSS and/or SSS, receiving terminal receives the data of oneself from described PRB centering, receive PSS and/or SSS, the DMRS of described PRB centering simultaneously, and use described PSS and/or SSS, DMRS demodulating data simultaneously.
As another execution mode preferably, for using a plurality of antenna ports to send the situation of PSS and/or SSS, enforcement below also can realize.
Network side carries out precoding to PSS and/or SSS, then sends the pre-coding matrix that wherein said precoding adopts the DMRS of certain 2 or 2 above motion ports of a plurality of PRB centerings that pre-coding matrix is carrying PSS and/or SSS to use.Wherein, the DMRS of described certain 2 or 2 above sky ports, all has use and different at the pre-coding matrix of described a plurality of PRB centerings described a plurality of PRB centerings.For this situation, because the pre-coding matrix difference of using described a plurality of PRB centerings will inevitably affect the performance that UE surveys PSS and/or SSS, if but described pre-coding matrix value is more approaching, the performance of PSS and/or SSS of impact survey to(for) UE also can be smaller, the enforcement that is now also fine.Now for UE, utilize the performance of PSS and/or SSS and DMRS joint demodulation data to promote to some extent, network side can configure suitable pre-coding matrix described a plurality of PRB centerings according to actual conditions, thereby the demodulation performance of UE is promoted.
When implementing, can determine the position that sends PSS and/or SSS according to system configuration, for example
Mode one: for LTE FDD system, if while using standard C P configuration, network side sends by the PSS of precoding processing at the symbol #6 of subframe #0 and #5 (symbol number in subframe starts from #0), and/or on the symbol #5 of subframe #0 and #5, sends the SSS of precoding processing.The frequency domain of PSS and/or SSS is still carried out according to existing LTER8 agreement.Now carry in the symbol #5 of PRB centering of PSS and/or SSS and #6 and stop sending DMRS.For LTE TDD system, if while using standard C P configuration, network side sends the SSS of precoding processing on the symbol #13 of subframe #0 and #5, and/or sends the SSS of precoding processing on the symbol #2 of subframe #1 and #6.The DMRS now carrying in the symbol #13 of PRB centering of PSS stops sending, if the PRB centering of carrying SSS is originally disposed DMRS, equally also needs to stop to send.
Mode two: in LTE FDD or TDD system, and during configuration standard CP, network is at the upper transmission of symbol (the referring to OFDM symbol) #3 of subframe #0 and #5 precoding processing PSS, and/or on the symbol #2 of subframe #0 and #5, send the SSS of precoding processing.Now, for FDD system, on the right symbol #5 of the PRB of carrying PSS and/or SSS and #6, send DMRS.For TDD system, on the right symbol #13 of the PRB of carrying SSS, send DMRS.
Mode three: in LTE FDD or TDD system, when configuration standard CP, network side sends the PSS of precoding processing on the symbol #8 of subframe #0 and #5, and/or sends the SSS of precoding processing on the symbol #1 of subframe #0 and #5.Now, for FDD system, network side sends DMRS on the right symbol #5 of the PRB of carrying PSS and/or SSS and #6.For TDD grid side, in the right symbol #13 of the PRB of carrying SSS, send DMRS.
Mode four: in LTE FDD system, during configuration standard CP, network side sends the PSS of precoding processing on the symbol #8 of subframe #0 and #5, and/or sends the SSS of precoding processing on the symbol #3 of subframe #0 and #5.Now in the symbol #5 of the PRB centering of carrying PSS and/or SSS and #6, send DMRS.In LTE TDD system, during configuration standard CP, network side sends the SSS of precoding processing on the symbol #8 of subframe #0 and #5, and/or on the symbol #0 of subframe #1 and #6, sends the PSS of precoding processing.Now, in the symbol #13 of PRB centering that carries SSS, send DMRS.
In the present embodiment, for using 2 or 2 PSS and/or SSS that send precoding with upper port, the processing of receiving terminal is as follows:
Receiving terminal is used (or by) 2 or 2 above antenna ports to receive by the PSS of precoding processing and/or SSS from the PRB centering of distributing, and for the downlink data of the PRB centering of distributing described in demodulation.The PRB wherein distributing is to referring to that network is that UE passes through the PRB couple that downstream grants signaling is distributed, and for transmitting downlink data, and this PRB centering has PSS and/or SSS configuration to send.2 or 2 above antenna ports of described use, refer to that antenna port is to arrange in advance, and are 2 or 2 above combinations in port 7, port 8, port 9 and port.The PSS of described precoding processing and/or SSS, the pre-coding matrix that precoding is wherein used is, carries the pre-coding matrix that the DMRS of certain 2 or 2 above antenna ports of a plurality of PRB centerings of described PSS and/or SSS is used.And the DMRS of described certain 2 or 2 above antenna ports is for all to have use described a plurality of PRB centerings, and pre-coding matrix used is identical.
Preferably, downlink data comprises user face data and chain of command signaling.The pre-coding matrix that the PSS that receiving terminal receives from different port above-mentioned PRB centering and/or SSS are used is identical with the pre-coding matrix of the DMRS receiving from corresponding port described PRB centering.For example, receiving terminal is used port 7 to receive from described PRB centering PSS and/or SSS are used identical pre-coding matrix with the DMRS that use port 7 receives from described PRB centering.
As another execution mode preferably, if network side divides into groups for the subcarrier of carrying PSS and/or SSS, do not use on the same group a port and corresponding pre-coding matrix to send PSS and/or SSS, receiving terminal needs subcarrier grouping principle according to a preconcerted arrangement, determine the subcarrier of each group, and the port of each group subcarrier use, and corresponding pre-coding matrix, then at the DMRS in conjunction with described PRB centering, carry out demodulation downlink data wherein.
As another execution mode preferably, if network side for the PRB of carrying PSS and/or SSS to dividing into groups, do not use on the same group a port and corresponding pre-coding matrix to send PSS and/or SSS, receiving terminal needs PRB according to a preconcerted arrangement to group forming criterion, determine the PRB couple of each group, and the port of each group PRB to use, and corresponding pre-coding matrix, then at the DMRS in conjunction with described PRB centering, carry out demodulation downlink data wherein.
Preferred embodiment nine
This preferred embodiment provides configuration, the sending method of a kind of synchronizing signal as demodulated reference signal.
In this preferred embodiment, the method comprises: network side sends subframe in synchronizing signal, and be Physical Resource Block (PRB) in carrying synchronizing signal to upper, PSS (master sync signal) and/or SSS (auxiliary synchronous signals) are mapped as to the port of demodulated reference signal.UE just can process the PSS/SSS signal that network side sends according to the port of demodulated reference signal like this, thereby uses the data of PRB centering described in its demodulation, comprises control signal or user data.
When implementing, PSS and/or SSS are mapped as to demodulated reference signal, can be in several ways, for example: network side is mapped as some in demodulated reference signal port 7,8,9,10 by PSS, for example, be approximately decided to be network side PSS is mapped as to demodulated reference signal port 7.Or SSS is mapped as to some in demodulated reference signal port 7,8,9,10, and for example, agreement is mapped as demodulated reference signal port 8 by SSS.Or PSS and SSS are mapped as to certain two in the port 7,8,9,10 of demodulated reference signal, for example agreement, when two antenna ports of selection, is mapped as demodulated reference signal port 7 and port 8 by PSS and SSS.Or PSS and SSS are mapped as to some in demodulated reference signal port 7,8,9,10 simultaneously, for example, arrange PSS and SSS to be mapped as demodulated reference signal port 7 simultaneously.The indication information that receiving terminal side Network Based sends or the default configuration of standard (arranging in advance) are determined the port that PSS, SSS are used.During described default configuration, preferred port 7 is PSS mapping demodulated reference signal; Preferred port 8 is SSS mapping demodulated reference signal.
Preferably, network side sends subframe in synchronizing signal, and the PRB centering of carrying synchronizing signal, when sending PSS/SSS based on demodulated reference signal port, the RE that demodulated reference signal port takies (Resource Unit) is the RE for PSS or SSS signal, and all sequences of above-mentioned port are PSS or sequence corresponding to SSS.Wherein, above-mentioned demodulated reference signal port is in 7,8,9,10.For example arrange port 7.
As another execution mode preferably, network side synchronizing signal sends subframe, and the PRB centering of carrying synchronizing signal, when based on demodulated reference signal port M and port N transmission PSS/SSS, the RE that demodulated reference signal port M takies is the RE for PSS (or SSS), and above-mentioned port M sequence used is the sequence that PSS (or SSS) is corresponding.The RE that demodulated reference signal port N takies is the RE for SSS (or PSS), and above-mentioned port N sequence used is the sequence that SSS (or PSS) is corresponding.Wherein, of all selecting from port 7,8,9,10 of M and N, and can be identical.
Preferably, when main and/or auxiliary synchronous signals is during as the demodulated reference signal of port M and/or port N, in synchronizing signal, send subframe, and the PRB of carrying synchronizing signal between adopt identical weights to carry out precoding processing.
Preferably, in synchronizing signal, send subframe, and the PRB of carrying synchronizing signal is to upper, but when transmitting, the maximum number of layers that restriction scheduling sends for data is no more than 2.In synchronizing signal, send subframe, and the PRB of carrying synchronizing signal is to upper, during multiuser multiplexing transmission, limiting each dispatched users number of layers is 1, and based on primary/secondary synchronizing signal, as demodulated reference signal port, sends respectively.
As an execution mode preferably, network side is indicated the distribution condition of described port and number of layers by the Downlink Control Information of down control channel; Or network side is notified UE by high-level signaling, the distribution condition of weights information, port and the number of plies that PSS/SSS is used; Or when the PRB centering of or auxiliary synchronous signals main in carrying sends ePDCCH, described port numbers can arrange to solidify in advance.So that reduce the number of times of UE retrieval ePDCCH.
In the present embodiment, to utilize synchronizing signal to make the processing mode of demodulated reference signal as follows for UE side:
Mode one: send subframe in synchronizing signal, and the PRB of carrying synchronizing signal is to upper, receiving terminal carries out the required channel estimating of data demodulates based on PSS and/or SSS.Concrete, with PSS and/or SSS, carry out the required channel estimating of data demodulates and be, PSS (or SSS) is used as to the channel estimating of demodulated reference signal port 7 (or port 8, or port 9, or port one 0).Or by 555 channel estimating that are used as demodulated reference signal port 8 (or port 7, or port 9, or port one 0).Maybe will lead the channel estimating that (or auxiliary) synchronizing signal is used as demodulated reference signal port 7, auxiliary (or main) synchronizing signal will be used as to the channel estimating of demodulated reference signal port 8.
Mode two: master sync signal is used as to the some channel estimating in demodulated reference signal port 7,8,9,10.Or master sync signal and auxiliary synchronous signals are used as to the channel estimating of certain two port in demodulated reference signal port 7,8,9,10.Or master sync signal and auxiliary synchronous signals are used as to the some channel estimating in demodulated reference signal port 7,8,9,10 simultaneously.Wherein, the indication information that receiving terminal side Network Based sends or the default configuration of standard are determined the port that master sync signal, auxiliary synchronous signals are used.During described default configuration, preferred port 7 is master sync signal; Preferred port 8 is auxiliary synchronous signals.
Mode three: send subframe in synchronizing signal, and the PRB of carrying synchronizing signal is to upper, when carrying out channel estimating based on demodulated reference signal port, the RE that UE expectation demodulated reference signal port takies is the RE for master sync signal (or auxiliary synchronous signals), and described port sequence used is the sequence that master sync signal (or auxiliary synchronous signals) is corresponding.Wherein, described demodulated reference signal port is from port 7,8,9,10.For example port 7.
Mode four: send subframe in described synchronizing signal, and the PRB couple of carrying synchronizing signal, when carrying out channel estimating based on demodulated reference signal port M and port N, the RE that UE potential solution demodulated reference signal port M takies is the RE for master sync signal (or auxiliary synchronous signals), and described port M sequence used is the sequence that master sync signal (or auxiliary synchronous signals) is corresponding.The RE that demodulated reference signal port N takies is the RE for auxiliary synchronous signals (or master sync signal), and described port N sequence used is the sequence that auxiliary synchronous signals (or master sync signal) is corresponding.Wherein, M and N all select one from port 7,8,9,10, and can be identical.
Mode five: send subframe in described synchronizing signal, and the PRB of carrying synchronizing signal is to upper, when UE is used as the channel estimating of port M and/or port N based on main and/or auxiliary synchronous signals, UE expects that the precoding weights that on described Resource Block, demodulated reference signal is corresponding are identical.Wherein, M and N all select one from port 7,8,9,10, and can be identical.
As an execution mode preferably, in described synchronizing signal, send subframe, and the PRB of carrying synchronizing signal is to upper, the number of layers of UE expected data transmission is less than or equal to 2; Or receiving terminal receives Downlink Control Information by down control channel, and obtain the occupation mode of number of layers and demodulated reference signal port.Or network side is notified UE by high-level signaling, the distribution condition of weights information, port and the number of plies that PSS/SSS is used; Or when the PRB centering of or auxiliary synchronous signals main in carrying sends ePDCCH, described port numbers can arrange to solidify in advance.
Preferred embodiment ten
In the present embodiment, a kind of transmission PSS and/or SSS are provided.The method is as follows: in new carrier wave, network side configuration can configure and send PSS and/or SSS according to mode below.
In this preferred embodiment, network side configuration PSS and/or SSS are used the pre-coding matrix identical with DMRS, and use antenna port 7 (or port 8 or port 9 or port one 0) to send PSS and/or SSS and the DMRS that adopts described pre-coding matrix to process.Wherein said DMRS all has use the PRB centering of carrying PSS and/or SSS, and pre-coding matrix is identical.
For example, network side and UE agreement adopt fixing antenna port, and for example agreement adopts and is fixed as port 7 (or port 8 or port 9 or port one 0).Network side is used port 7(or port 8 or port 9 or port one 0) send PSS and/or SSS, and adopt precoding processing for PSS and/or SSS, the pre-coding matrix using is the pre-coding matrix of the DMRS of port 7 correspondences.The position that described PSS and/or SSS are corresponding refers to, LTE Rll(is identical with RlO version with R8, R9) in the PSS of regulation and/or the position of SSS mapping, specifically can, with reference to LTE36.211 agreement, repeat no more herein.
When implementing, preferably, network side is determined port number and the port numbers that in middle 6 RBs, DMRS is used, when definite port number is 1, port numbers is 7, network side just adopts the pre-coding matrix corresponding to DMRS of port 7 to carry out precoding processing for PSS and/or SSS so, then uses port 7 to send PSS and/or SSS after precoding processing.For FDD, now PSS and/or SSS conflict at the OFDM of subframe #0 and #5 symbol 5,6 (from 0 coding) with DMRS, now no longer send the DMRS on OFDM symbol 5,6, but send PSS and/or the SSS data of precoding processing.Receiving terminal has been arranged in advance to use single antenna port and has been used the pre-coding matrix identical with this port DMRS to carry out precoding processing with network side, so receiving terminal can be processed according to mode below.According to different objects, receiving terminal is divided into Cell searching when synchronous, during receiving demodulation data.
Preferably, for Cell searching, synchronous UE, legacy version UE (supposing that UE can access new carrier wave) still receives PSS and/or SSS according to original mode, under original mode, UE does not know which port network side specifically used send PSS and/or SSS, so can only sound out one by one all single port, receive, be obviously unfavorable for that UE receives PSS and/or SSS.When UE sounds out use port 7 reception PSS and/or SSS, UE can receive by the PSS/SSS of precoding processing, but due to community search element, synchronous just for PSS and/or SSS sequence carry out associative operation judge whether synchronous because precoding processing can not affect the judgement of the associative operation of PSS and/or SSS sequence.So can not affect the work of legacy version UE.For redaction UE, only need to do associative operation according to the port of agreement 7 reception PSS and/or SSS sequence, judge whether synchronously, do not need to sound out again other ports of reception, in this case, be convenient to UE and receive.
For receiving PSS and/or the SSS UE for demodulating data, UE receives PSS and/or SSS according to approximately fixing on port 7, then the PSS receiving and/or SSS are separated to pre-coding matrix processing, then with the demodulation of described remaining DMRS for corresponding data, detailed process, with directly use DMRS is identical, now only need to be regarded PSS and/or SSS as DMRS processing.
Preferred embodiment 11
In the present embodiment, a kind of transmission PSS and/or SSS are provided.What this preferred embodiment was described is to use 2 antenna ports to send the situation of PSS and/or SSS, and the method is as follows:
Network side is determined while using two ports to send PSS and/or SSS, network side is by the subcarrier grouping of carrying PSS and/or SSS data, for antenna port of each group sub-carrier configuration, and use the pre-coding matrix of DMRS of the antenna port of this group sub-carrier configuration to carry out precoding processing for the PSS and/or the SSS data that are carried on this group subcarrier, then use the antenna port that each assembly is put to send by the PSS of precoding processing and/or SSS.Wherein carry the subcarrier of PSS and/or SSS data specifically at the related protocol with reference to LTE (TS36.211, in LTER8 ~ R11, the subcarrier mapping position of PSS and/or SSS is all identical), repeat no more here.
Preferably, candidate's antenna port is port 7, port 8, port 9 and port one 0.Wherein, can divide into groups to above-mentioned subcarrier, suggestion is divided into 2 groups or 4 groups, for example, while dividing 2 groups, according to subcarrier number, is divided into odd number group and even number set.
For example, when network side will be used two antenna ports to send PSS and/or SSS, fixed end mouth 7 and port 8 send PSS and/or SSS according to appointment, network side is divided into 2 group by the subcarrier of carrying PSS and/or SSS according to numbering according to strange, the even number of the numbering of subcarrier, and each assembly is put and is used a port, example adds odd number group and uses port 7, and even number set is used port 8, and for each organizes the pre-coding matrix that the PSS that carries in subcarrier and/or SSS data are used the DMRS of this group corresponding ports.Then after precoding processing, PSS and/or SSS data are used corresponding port to send in corresponding subcarrier.
When implementing, network side is determined port number and the port numbers that in middle 6 RBs, DMRS is used, when definite port number is 2, port numbers is 7, 8, network side is divided into odd number group and even number set by the subcarrier of carrying PSS and/or SSS according to numbering, odd number group is used port 7 to send, even number set is used port 8 to send, and the PSS carrying in odd number group subcarrier and/or SSS data are used the DMRS pre-coding matrix of port 7 corresponding to odd number group to carry out precoding processing, the PSS carrying in even number set subcarrier and/or SSS data are used the DMRS pre-coding matrix of port 8 corresponding to even number set to carry out precoding processing, then use port 7, PSS and/or SSS data after port 8 difference transmission processings.For FDD, now PSS and/or SSS conflict at the OFDM of subframe #0 and #5 symbol 5,6 (from 0 numbering) with DMRS, now no longer send the DMRS on OFDM symbol 5,6, but send PSS and/or the SSS data of precoding processing.Receiving terminal and network side arrange to use 2 antenna ports to send PSS and/or SSS in advance, and use the pre-coding matrix of the DMRS that port is corresponding to carry out precoding processing, so receiving terminal can be processed according to mode below.According to different objects, receiving terminal is divided into Cell searching, synchronous object, and receiving demodulation data object.
For redaction UE, UE is used port 7 and port 8 to receive PSS and/or SSS data, then according to prior agreement, PSS in being numbered the subcarrier of odd number and/or SSS data are used the pre-coding matrix of the DMRS of port 7 correspondences to do solution precoding processing, and the PSS in being numbered the subcarrier of even number and/or SSS data are used the pre-coding matrix of the DMRS of port 8 correspondences to do solution precoding processing.Also the DMRS in OFDM symbol 12,13 in the PSS in the subcarrier of odd number and/or SSS and RB can be joined together to do the demodulation of data.Wherein, concrete demodulating process, with directly use DMRS demodulation is identical, now only need to be regarded PSS and/or SSS data as DMRS processing.
Preferred embodiment 12
The method of PSS of transmission and/or SSS a kind of is provided in the present embodiment.In this preferred embodiment, network side and receiving terminal agreement, synchronizing signal adopts port 7 and port 8 to send, the method is as follows: network side sends in subframe in synchronizing signal, and the PRB of carrying PSS/SSS signal on, PSS and SSS are mapped as respectively to port 7 and the port 8 of demodulated reference signal and send.Meanwhile, network side is also to use port 7 and port 8 to send DMRS described PRB centering.The PRB that now carries PSS and SSS between use identical weights to carry out precoding processing.These weights are identical with the weights of the DMRS of described PRB centering.
In the present embodiment, receiving terminal acquiescence PSS and SSS are used respectively port 7 and port 8 to send, and the channel estimating using PSS and SSS as demodulated reference signal port 7 and port 8.The RE that receiving terminal expectation (thinking) demodulated reference signal takies is the RE of PSS and SSS, and the sequence of the using corresponding sequence that is PSS and SSS.
In the present embodiment, receiving terminal is combined the PSS receiving from port 7 and port 8 and SSS for channel estimating with the DMRS that port 7 and the port 8 of described PRB centering receive.The weights that receiving terminal default port 7 and PSS in port 8 and SSS are used with DMRS in port 8 respectively at the port 7 of described PRB centering are identical.
Preferred embodiment 13
The method of PSS of transmission and/or SSS a kind of is provided in the present embodiment.In this preferred embodiment, network side and receiving terminal agreement, synchronizing signal adopts port 7 to send, and the method comprises: network side sends in subframe in synchronizing signal, and the PRB of carrying PSS/SSS signal on, PSS and SSS are mapped as to the port 7 of demodulated reference signal simultaneously and send.Meanwhile, network side is also to use port 7 to send DMRS described PRB centering.The PRB that now carries PSS and SSS between use identical weights to carry out precoding processing.These weights are identical to the weights of the DMRS of middle port 7 with described PRB.
In the present embodiment, receiving terminal acquiescence PSS and SSS are used respectively port 7 to send, and the channel estimating using PSS and SSS as demodulated reference signal port 7.The RE that receiving terminal expectation (thinking) demodulated reference signal takies is the RE of PSS and SSS, and the sequence of the using corresponding sequence that is PSS and SSS.
In the present embodiment, receiving terminal is combined the PSS receiving from port 7 and SSS for channel estimating with the DMRS that the port 7 of described PRB centering receives.PSS in receiving terminal default port 7 is identical with the weights that SSS is used respectively at the DMRS in the port 7 of described PRB centering.
It should be noted that, considering that in current agreement, the DMRS port for demodulation PDSCH is defined as antenna port 7, antenna port 8, antenna port 9, antenna port 10, is antenna port 107, antenna port 108, antenna port 109, antenna port 110 for the DMRS port definition of demodulation ePDCCH.So, according to PDSCH or the ePDCCH of the PRB centering transmission at carrying PSS and/or SSS, select corresponding antenna port collection.It is example explanation that the application be take DMRS port definition corresponding to PDSCH.
Pass through above-described embodiment, the processing method of synchronizing signal is provided, Apparatus and system, channel estimation methods and device, by adopting precoding processing for PSS and/or SSS, PSS and/or SSS can be combined for demodulating data with the DMRS that carries the PRB centering of PSS and/or SSS, promoted the data demodulates performance of described PRB centering, and for new carrier wave, when new carrier wave is destroyed the DMRS on the OFDM symbol clashing with PSS and/or SSS 6 PRB centerings of centre, adopt PSS provided by the invention and/or SSS send mode, can solve the problem declining owing to destroying demodulation performance that part DMRS causes.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (85)

1. a processing method for synchronizing signal, is characterized in that comprising:
Network side is determined the first pre-coding matrix that the demodulated reference signal DMRS of one or more antenna ports that a plurality of Physical Resource Block PRB of carrying master sync signal PSS and/or auxiliary synchronous signals SSS are right is used, wherein, described the first pre-coding matrix all has use in described a plurality of PRB;
Described network side is used described the first pre-coding matrix to carry out precoding to described PSS and/or described SSS.
2. method according to claim 1, is characterized in that, network side determines that the first pre-coding matrix that the right one or more antenna ports of a plurality of PRB of carrying PSS and/or SSS are used comprises:
When using single antenna port to send described PSS and/or described SSS; described network side is selected an antenna port from the right all antenna ports of described PRB, and the second pre-coding matrix that the DMRS of an antenna port of this selection is used is as described the first pre-coding matrix;
When using many antenna ports to send described PSS and/or described SSS, described network side is selected at least two antenna ports from the right all antenna ports of described PRB, and the 3rd pre-coding matrix that the DMRS of at least two antenna ports of this selection is used is as described the first pre-coding matrix.
3. method according to claim 1, is characterized in that, at described network side, uses after described the first pre-coding matrix carries out precoding to described PSS and/or described SSS, also comprises:
Described network side sends one of in the following manner described PSS and/or described SSS:
Mode one: in FDD mode; and while being standard cyclic prefix CP; the described PSS of described network side send precoding on the orthogonal frequency division multiplex OFDM symbol 6 of subframe 0 and subframe 5 after, the described SSS send precoding on the OFDM symbol 5 of described subframe 0 and described subframe 5 after;
In TDD mode; and while being described standard C P; the described SSS of described network side send precoding on the OFDM symbol 13 of described subframe 0 and described subframe 5 after, the described PSS send precoding on the OFDM symbol 2 of described subframe 1 and described subframe 6 after;
Mode two: when described standard C P, the described PSS of described network side send precoding on the OFDM symbol 3 of described subframe 0 and described subframe 5 after, the described SSS send precoding on the OFDM symbol 2 of described subframe 0 and subframe 5 after;
Mode three: when described standard C P, the described PSS of described network side send precoding on the symbol 8 of described subframe 0 and described subframe 5 after, the described SSS send precoding on the OFDM symbol 1 of described subframe 0 and described subframe 5 after;
Mode four: in described FDD mode; and while being described standard C P; the described PSS of described network side send precoding on the OFDM symbol 8 of described subframe 0 and subframe 5 after, the described SSS send precoding on the OFDM symbol 3 of described subframe 0 and described subframe 5 after;
In described TDD mode, and while being described standard C P, described network side described 0 and the OFDM symbol 8 of described subframe 5 on described SSS after sending precoding, the PSS send precoding on the OFDM symbol 0 of described subframe 1 and subframe 6 after.
4. method according to claim 3, is characterized in that,
In described FDD mode and while being described standard C P configuration, described network side is cancelled and is sent DMRS in the OFDM symbol 5 of described PRB centering of the described PSS of carrying and/or described SSS and the resource of OFDM symbol 6; When described TDD mode and described standard C P configuration, described network side is cancelled and is sent described DMRS in the resource of the OFDM symbol 13 of the PRB centering of the described SSS of carrying.
5. method according to claim 1, is characterized in that, described network side is used described the first pre-coding matrix to carry out precoding to described PSS and/or described SSS to comprise:
When using many antenna ports to send described PSS and/or described SSS, described network side is divided into many groups by the subcarrier of the described PSS of carrying and/or described SSS; The described PSS of described each group carrying and/or described SSS use this each organize corresponding antenna port the corresponding pre-coding matrix of DMRS carry out precoding; Wherein, the subcarrier of described each group is used different antenna ports to send, and packet count equals to send the sum of the antenna port that described PSS and/or SSS use.
6. method according to claim 5, is characterized in that, described network side is divided into many groups by the subcarrier of carrying described PSS and/or described SSS and comprises one of following:
Numbering according to the subcarrier of the described PSS of carrying and/or described SSS is divided into groups;
PRBWei unit according to the subcarrier of the described PSS of carrying and/or described SSS divides into groups.
7. according to the method described in any one in claim 1 to 6, it is characterized in that, described the first pre-coding matrix is identical at the pre-coding matrix of described a plurality of PRB centerings.
8. according to the method described in any one in claim 2 to 6, it is characterized in that, it is one of following that a described antenna port of selection comprises:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10.
9. according to the method described in any one in claim 2 to 6, it is characterized in that, described at least two antenna ports of selection comprise at least two in following antenna port:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10.
10. according to the method described in any one in claim 2 to 6, it is characterized in that, at described network side, use after described the first pre-coding matrix carries out precoding to described PSS and/or described SSS, also comprise:
The PRB that receiving terminal is determined the transmission data that described network side distributes is during to a plurality of Physical Resource Block PRB centering at carrying master sync signal PSS and/or auxiliary synchronous signals SSS, and described receiving terminal is one of below the PRB of described transmission data centering receives: data, DMRS, described PSS that described network side sends; Data, described DMRS, described SSS that described network side sends; Data, DMRS, described PSS and described SSS that described network side sends;
Described receiving terminal is carried out one of following operation
The described PSS that described receiving terminal use receives and/or described SSS and described DMRS are that the data that described network side sends are carried out demodulation;
Described receiving terminal carries out combined decoding to the following data that receive:
The data that the described PSS receiving and/or described SSS, described DMRS, described network side send.
11. according to the method for claim 10, it is characterized in that,
The pre-coding matrix that the definite PSS receiving from the PRB centering of described transmission data of described receiving terminal and/or SSS are used is identical with the pre-coding matrix of the DMRS that the PRB centering from described transmission data receives.
12. according to the method for claim 10, it is characterized in that, and when using single antenna port to send described PSS and/or described SSS,
The antenna port that the definite PSS receiving from the PRB centering of described transmission data of described receiving terminal and/or SSS are used is identical with the antenna port that the DMRS that the PRB centering from described transmission data receives is used;
Described receiving terminal determines that the PSS and/or the corresponding pre-coding matrix of SSS that from the right OFDM symbol of the PRB of described transmission data, receive are in described OFDM symbol, to be stopped the pre-coding matrix of the DMRS of transmission.
The processing method of 13. 1 kinds of synchronizing signals, is characterized in that comprising:
Right middle reception master sync signal PSS and/or the auxiliary synchronous signals SSS of Physical Resource Block PRB that receiving terminal is distributing; wherein; described PSS and/or described SSS are used the first pre-coding matrix to carry out precoding processing by network side; described the first pre-coding matrix is the pre-coding matrix that the demodulated reference signal DMRS of one or more antenna ports that a plurality of PRB of the described PSS of the definite carrying of described network side and/or described SSS are right is used; wherein, described the first pre-coding matrix all has use in described a plurality of PRB;
Described receiving terminal is used the downlink data of the PRB centering of distributing described in described PSS and/or described SSS demodulation.
14. methods according to claim 13, is characterized in that, described receiving terminal is used the downlink data of the PRB centering of distributing described in described PSS and/or described SSS demodulation to comprise:
Described receiving terminal determines that the PRB of described network side transmission data is to the PRB centering at the described PSS of carrying and/or described SSS;
Described receiving terminal receives described PSS and/or the SSS of the PRB centering of described transmission data, and DMRS;
Described receiving terminal is used described PSS and/or SSS, and described DMRS carries out demodulation to described data.
15. methods according to claim 14, is characterized in that, the pre-coding matrix that the PSS receiving from the PRB centering of described transmission data and/or SSS are used is identical with the pre-coding matrix of the DMRS that the PRB centering from described transmission data receives.
16. methods according to claim 14, is characterized in that, the antenna port that the PSS receiving from the PRB centering of described transmission data and/or SSS are used is identical with the antenna port that the DMRS that the PRB centering from described transmission data receives is used.
17. methods according to claim 14, is characterized in that, in OFDM symbol corresponding to the PSS receiving and/or SSS, being cancelled the pre-coding matrix that sends DMRS is described the first pre-coding matrix that described PSS and/or described SSS are corresponding.
18. methods according to claim 13, is characterized in that,
When using single antenna port to send described PSS and/or described SSS, described the first pre-coding matrix is the second pre-coding matrix that an antenna port that described network side is selected from the right all antenna ports of described PRB is used;
When using many antenna ports to send described PSS and/or described SSS, described the first pre-coding matrix is the 3rd pre-coding matrix that at least two antenna ports that described network side is selected from the right all antenna ports of described PRB are used.
19. according to claim 13 to the method described in any one in 18, it is characterized in that,
The PRB of described distribution is to referring to that described network side is the PRB couple for transmitting downlink data and/or control signal that described receiving terminal distributes, and the PRB centering of described distribution is disposed described PSS and/or described SSS.
20. according to claim 13 to the method described in any one in 18, it is characterized in that,
Described downlink data comprises: user face data and control class signaling.
21. according to claim 13 to the method described in any one in 18, it is characterized in that,
When using many antenna ports to send described PSS and/or described SSS, the subcarrier that carries described PSS and/or described SSS will be divided into many groups by described network side; The described PSS of described each group carrying and/or described SSS use this each organize corresponding antenna port the corresponding pre-coding matrix of DMRS carry out precoding; Wherein, the subcarrier of described each group is used different antenna ports to send, and packet count equals to send the sum of the antenna port that described PSS and/or SSS use.
22. methods according to claim 21, is characterized in that, one of in the following manner the subcarrier of the described PSS of carrying and/or described SSS will be divided into many groups by described network side:
Numbering according to the subcarrier of the described PSS of carrying and/or described SSS is divided into groups;
PRBWei unit according to the subcarrier of the described PSS of carrying and/or described SSS divides into groups.
23. according to claim 13 to the method described in any one in 18, it is characterized in that, described the first pre-coding matrix is identical at the pre-coding matrix of described a plurality of PRB centerings.
24. methods according to claim 18, is characterized in that, it is one of following that a described antenna port of selection comprises:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10.
25. methods according to claim 18, is characterized in that, described at least two antenna ports of selection comprise at least two in following antenna port:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10.
The processing unit of 26. 1 kinds of synchronizing signals, is applied to network side, it is characterized in that comprising:
The first determination module; for the first pre-coding matrix of determining that the demodulated reference signal DMRS of one or more antenna ports that a plurality of Physical Resource Block PRB of carrying master sync signal PSS and/or auxiliary synchronous signals SSS are right is used; wherein, described the first pre-coding matrix all has use in described a plurality of PRB;
The first precoding module, for being used described the first pre-coding matrix to carry out precoding to described PSS and/or described SSS.
27. devices according to claim 26, is characterized in that, described the first determination module comprises:
First selects module, for when using single antenna port to send described PSS and/or described SSS, from the right all antenna ports of described PRB, selects an antenna port; The second determination module, the second pre-coding matrix using for the DMRS of an antenna port of this selection is as described the first pre-coding matrix;
Second selects module, and for when using many antenna ports to send described PSS and/or described SSS, described network side is selected at least two antenna ports from the right all antenna ports of described PRB; The 3rd determination module, for the 3rd pre-coding matrix that the DMRS of at least two antenna ports of this selection is used as described the first pre-coding matrix.
28. devices according to claim 26, it is characterized in that, also comprise: sending module, for using in described the first precoding module after described the first pre-coding matrix carries out precoding to described PSS and/or described SSS, sends one of in the following manner described PSS and/or described SSS:
Mode one: in FDD mode; and while being standard cyclic prefix CP; the described PSS of described network side send precoding on the OFDM symbol 6 of subframe 0 and subframe 5 after, the described SSS send precoding on the OFDM symbol 5 of described subframe 0 and described subframe 5 after;
In TDD mode; and while being described standard C P; the described SSS of described network side send precoding on the OFDM symbol 13 of described subframe 0 and described subframe 5 after, the described PSS send precoding on the OFDM symbol 2 of described subframe 1 and described subframe 6 after;
Mode two: when described standard C P, the described PSS send precoding on the OFDM symbol 3 of described subframe 0 and described subframe 5 after, the described SSS send precoding on the OFDM symbol 2 of described subframe 0 and subframe 5 after;
Mode three: when described standard C P, the described PSS send precoding on the OFDM symbol 8 of described subframe 0 and described subframe 5 after, the described SSS send precoding on the OFDM symbol 1 of described subframe 0 and described subframe 5 after;
Mode four: in described FDD mode, and while being described standard C P, the described PSS send precoding on the symbol 8 of described subframe 0 and subframe 5 after, the described SSS send precoding on the OFDM symbol 3 of described subframe 0 and described subframe 5 after;
In described TDD mode, and while being described standard C P, described 0 and the symbol 8 of described subframe 5 on described SSS after sending precoding, the PSS send precoding on the OFDM symbol 0 of described subframe 1 and subframe 6 after.
29. devices according to claim 28, is characterized in that, also comprise:
The first processing module in described FDD mode and while being described standard C P configuration, is cancelled and is sent demodulated reference signal DMRS in the orthogonal frequency division multiplex OFDM symbol 5 of described PRB centering of the described PSS of carrying and/or described SSS and the resource of OFDM symbol 6; The second processing module for when described TDD mode and the described standard C P configuration, is cancelled and is sent described DMRS in the resource of the OFDM symbol 13 of the PRB centering of the described SSS of carrying.
30. devices according to claim 26, is characterized in that, described the first precoding module comprises:
First divides module, for when using many antenna ports to send described PSS and/or described SSS, the subcarrier of the described PSS of carrying and/or described SSS is divided into many groups; The second precoding module, for the described PSS of described each group carrying and/or described SSS are used this each organize corresponding antenna port the corresponding pre-coding matrix of DMRS carry out precoding; Wherein, the subcarrier of described each group is used different antenna ports to send, and packet count equals to send the sum of the antenna port that described PSS and/or SSS use.
31. devices according to claim 30, is characterized in that, described first divides module comprises:
Second divides module, for dividing into groups according to the numbering of the subcarrier of the described PSS of carrying and/or described SSS; Or
The 3rd divides module, for dividing into groups according to the PRBWei unit of the subcarrier of the described PSS of carrying and/or described SSS.
32. according to the device described in any one in claim 26 to 31, it is characterized in that, described the first pre-coding matrix is identical at the pre-coding matrix of described a plurality of PRB centerings.
33. according to the device described in any one in claim 27 to 31, it is characterized in that, it is one of following that a described first described antenna port of selecting module to select comprises:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10.
34. according to the device described in any one in claim 27 to 31, it is characterized in that, described second described at least two antenna ports of selecting module to select comprise at least two in following antenna port:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10.
The processing unit of 35. 1 kinds of synchronizing signals, is applied to receiving terminal, it is characterized in that comprising:
The first receiver module; for right reception master sync signal PSS and/or the auxiliary synchronous signals SSS of Physical Resource Block PRB distributing; wherein; described PSS and/or described SSS are used the first pre-coding matrix to carry out precoding processing by network side; described the first pre-coding matrix is the pre-coding matrix that the demodulated reference signal DMRS of one or more antenna ports that a plurality of PRB of the described PSS of the definite carrying of described network side and/or described SSS are right is used; wherein, described the first pre-coding matrix all has use in described a plurality of PRB;
The first demodulation module, for being used the downlink data of the PRB centering of distributing described in described PSS and/or described SSS demodulation.
36. devices according to claim 35, is characterized in that, described the first demodulation module comprises:
The 4th determination module, the PRB that sends data for definite described network side is to the PRB centering at the described PSS of carrying and/or described SSS;
The second receiver module, for receiving described PSS and/or the described SSS of the PRB centering of described transmission data, and DMRS;
The second demodulation module, for using described PSS and/or SSS, and DMRS carries out demodulation to described transmission data.
37. devices according to claim 36, it is characterized in that, the pre-coding matrix that the PSS that described the second receiver module receives from the PRB centering of described transmission data and/or SSS are used is identical with the pre-coding matrix of the DMRS that the PRB centering from described transmission data receives.
38. devices according to claim 36, it is characterized in that, the antenna port that the PSS that described the second receiver module receives from the PRB centering of described transmission data and/or SSS are used is identical with the antenna port that the DMRS that the PRB centering from described transmission data receives is used.
39. devices according to claim 36, it is characterized in that, in OFDM symbol corresponding to the PSS that described the second receiver module receives and/or SSS, being cancelled the pre-coding matrix that sends DMRS is described the first pre-coding matrix that described PSS and/or described SSS are corresponding.
40. devices according to claim 35, is characterized in that,
When using single antenna port to send described PSS and/or described SSS, described the first pre-coding matrix is the second pre-coding matrix that an antenna port that described network side is selected from the right all antenna ports of described PRB is used;
When using many antenna ports to send described PSS and/or described SSS, described the first pre-coding matrix is the 3rd pre-coding matrix that at least two antenna ports that described network side is selected from the right all antenna ports of described PRB are used.
41. according to the device described in any one in claim 35 to 40, it is characterized in that,
The PRB of described distribution is to referring to that described network side is the PRB couple for transmitting downlink data and/or control signal that described receiving terminal distributes, and the PRB centering of described distribution is disposed described PSS and/or described SSS.
42. according to the device described in claim 41, it is characterized in that,
Described downlink data comprises: user face data and control class signaling.
43. according to the device described in any one in claim 35 to 40, it is characterized in that,
When using many antenna ports to send described PSS and/or described SSS, the subcarrier that carries described PSS and/or described SSS will be divided into many groups by described network side; The described PSS of each the group carrying in described many groups and/or described SSS use this each organize corresponding antenna port the corresponding pre-coding matrix of DMRS carry out precoding; Wherein, the subcarrier of described each group is used different antenna ports to send, and packet count equals to send the sum of the antenna port that described PSS and/or SSS use.
44. according to the device described in claim 43, it is characterized in that, the subcarrier that carries described PSS and/or described SSS is divided into groups one of in the following manner by described network side:
Numbering according to the subcarrier of the described PSS of carrying and/or described SSS is divided into groups;
PRBWei unit according to the subcarrier of the described PSS of carrying and/or described SSS divides into groups.
45. according to the device described in any one in claim 35 to 40, it is characterized in that, described the first pre-coding matrix is identical at the pre-coding matrix of described a plurality of PRB centerings.
46. according to the device described in claim 40, it is characterized in that, it is one of following that a described antenna port of selection comprises:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10.
47. according to the device described in claim 40, it is characterized in that, described at least two antenna ports of selection comprise at least two in following antenna port:
Antenna port 7, antenna port 8, antenna port 9, antenna port 10.
The treatment system of 48. 1 kinds of synchronizing signals, is characterized in that comprising: according to the processing unit of the synchronizing signal described in any one in claim 26 to 34 with according to the processing unit of the synchronizing signal described in any one in claim 35 to 47.
The processing method of 49. 1 kinds of synchronizing signals, is characterized in that comprising:
Network side is determined the port of the demodulated reference signal DMRS that the Physical Resource Block of carrying master sync signal PSS and/or auxiliary synchronous signals SSS is right;
Described network side described Physical Resource Block on described PSS and/or described SSS are mapped as to the signal of described port.
50. according to the method described in claim 49, it is characterized in that, described network side described Physical Resource Block on described PSS and/or described SSS are mapped as to described port signal comprise one of following:
Described network side described Physical Resource Block on described PSS is mapped as to the signal of one of following DMRS port:
Port 7, port 8, port 9, port one 0;
Described network side described Physical Resource Block on described SSS is mapped as to the signal of one of following DMRS port:
Described port 7, described port 8, described port 9, described port one 0;
Described network side described Physical Resource Block on described PSS and described SSS are mapped as to the signal of one of following DMRS port, or be mapped as the signal of two ports in following DMRS port:
Described port 7, described port 8, described port 9, described port one 0.
51. according to the method described in claim 49, it is characterized in that, described network side directly or is indirectly indicated master sync signal and the corresponding default port of described auxiliary synchronous signals described in receiving terminal.
52. according to the method described in claim 51, it is characterized in that the default port-for-port 7 that described master sync signal is corresponding, the default port-for-port 8 that described auxiliary synchronous signals is corresponding; Or the default port-for-port 8 that described master sync signal is corresponding, the default port-for-port 7 that described auxiliary synchronous signals is corresponding.
53. according to the method described in claim 49, it is characterized in that, the Physical Resource Block of carrying described PSS and/or described SSS on, while being used as the reference signal of DMRS port with described PSS and/or SSS, the shared RE of port of described DMRS is the Resource Unit RE that described PSS and/or described SSS take, and, the sequence that the port of described DMRS is used is the sequence that described PSS and/or described SSS are used, and the port of described DMRS is one of following: port 7, port 8, port 9, port one 0.
54. according to the method described in claim 49, it is characterized in that, the Physical Resource Block of carrying described PSS and/or described SSS on, described PSS and/or described SSS be during as the reference signal of DMRS port M, port N,
The RE that described DMRS port M takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The RE that described DMRS port N takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
It is one of following that described DMRS port M and DMRS port N are: port 7, port 8, port 9, port one 0, the sequence that described PSS or described SSS are used is the sequence that described DMRS port M is used.
55. according to the method described in claim 49, it is characterized in that, described PSS and/or described SSS be during as the DMRS signal of described DMRS port M and/or described port N, the PRB that carries described PSS and/or described SSS between use identical weights to carry out precoding processing.
56. according to the method described in claim 49, it is characterized in that, the Physical Resource Block of carrying described PSS and/or described SSS on,
When the transmission of alone family, the maximum number of layers that dispatch user data sends is less than or equal to 2;
When multiuser multiplexing transmits, the number of layers that dispatch user data sends is 1, and the data of described multiuser multiplexing transmission send as DMRS port based on described PSS or described SSS.
57. according to the method described in claim 56, it is characterized in that,
Described network side is indicated the distribution condition of described DMRS port and described number of layers by down control channel; Or
Described network side is notified described receiving terminal by high-level signaling, the distribution condition of weights information, described DMRS port and described number of layers that described PSS or described SSS are used; Or
When the PRB centering of the described PSS of carrying and/or described SSS sends enhancing Physical Downlink Control Channel, default described port numbers.
58. 1 kinds of channel estimation methods, is characterized in that comprising:
Receiving terminal receives master sync signal PSS and/or auxiliary synchronous signals SSS;
Described receiving terminal is used described PSS and/or described SSS to carry out channel estimating;
Wherein, described PSS and/or described SSS are the signal that described network side is mapped as DMRS port, and described DMRS port is the port of the right DMRS of the Physical Resource Block of the described PSS of carrying and/or described SSS.
59. according to the method described in claim 58, it is characterized in that, described receiving terminal is used described PSS and/or described SSS to carry out channel estimating to comprise one of following:
Described receiving terminal is used described PSS to carry out the channel estimating of one of following DMRS port:
Port 7, port 8, port 9, port one 0;
Described receiving terminal is used described SSS to carry out the channel estimating of one of following DMRS port:
Described port 7, described port 8, described port 9, described port one 0;
Described receiving terminal is used described PSS and described SSS to carry out the channel estimating of one of following DMRS port or the channel estimating of two ports in following DMRS port:
Described port 7, described port 8, described port 9, described port one 0;
Described receiving terminal is used described PSS or described SSS to carry out the channel estimating of described port 7;
Described receiving terminal is used described PSS or described SSS to carry out the channel estimating of described port 8;
Described receiving terminal is used described PSS or described SSS to carry out the channel estimating of described port 7, and uses described PSS or described SSS to carry out the channel estimating of described port 8.
60. according to the method described in claim 59, it is characterized in that, described receiving terminal directly or is indirectly indicated and determined described master sync signal and default port corresponding to described auxiliary synchronous signals according to described network side.
61. according to the method described in claim 60, it is characterized in that the default port-for-port 7 that described master sync signal is corresponding, the default port-for-port 8 that described auxiliary synchronous signals is corresponding; Or the default port-for-port 8 that described master sync signal is corresponding, the default port-for-port 7 that described auxiliary synchronous signals is corresponding.
62. according to the method described in claim 58, it is characterized in that, the Physical Resource Block of carrying described PSS and/or described SSS on, when the port of use DMRS carries out channel estimating, the shared RE of port of the DMRS of described receiving terminal expectation is the Resource Unit RE that described PSS and/or described SSS take, and the sequence that the port of described DMRS is used is the sequence that described PSS and/or described SSS are used, the port of described DMRS is one of following: port 7, port 8, port 9, port one 0.
63. according to the method described in claim 58, it is characterized in that, the Physical Resource Block of carrying described PSS and/or described SSS on, while using DMRS port M and DMRS port N to carry out channel estimating,
The RE that described DMRS port M takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The RE that described DMRS port N takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The sequence that described PSS or described SSS are used is the sequence that described DMRS port M is used, and it is one of following that described DMRS port M and DMRS port N are: port 7, port 8, port 9, port one 0.
64. according to the method described in claim 58, it is characterized in that, when using described PSS and/or described SSS to carry out the channel estimating of described DMRS port M and described port N, the Physical Resource Block of the described receiving terminal expectation described PSS of carrying and/or described SSS is identical to precoding weights corresponding to upper DMRS.
65. according to the method described in any one in claim 58 to 64, it is characterized in that, the Physical Resource Block of carrying described PSS and/or described SSS on,
When the transmission of alone family, the maximum number of layers that dispatch user data sends is less than or equal to 2;
When multiuser multiplexing transmits, the number of layers that dispatch user data sends is 1, and the data of described multiuser multiplexing transmission send as DMRS port based on described PSS or described SSS.
66. according to the method described in claim 65, it is characterized in that,
Described receiving terminal, by receiving the Downlink Control Information of down control channel, obtains the distribution condition of described DMRS port and described number of layers; Or
Described receiving terminal is known by high-level signaling, the distribution condition of weights information, described DMRS port and described number of layers that described PSS or described SSS are used; Or
When the PRB centering of the described PSS of carrying and/or described SSS sends enhancing Physical Downlink Control Channel, default described port numbers.
The processing unit of 67. 1 kinds of synchronizing signals, is applied to network side, it is characterized in that comprising:
The 5th determination module, for the port of the right demodulated reference signal DMRS of the Physical Resource Block of definite carrying master sync signal PSS and/or auxiliary synchronous signals SSS;
The first mapping block, for described Physical Resource Block on described PSS and/or described SSS are mapped as to the signal of described port.
68. according to the device described in claim 67, it is characterized in that, described the first mapping block comprises with one of lower module:
The second mapping block, for described Physical Resource Block on described PSS is mapped as to the signal of one of following DMRS port: port 7, port 8, port 9, port one 0;
The 3rd mapping block, for described Physical Resource Block on described SSS is mapped as to the signal of one of following DMRS port: described port 7, described port 8, described port 9, described port one 0;
The 4th mapping block, for described Physical Resource Block on described PSS and described SSS are mapped as to the signal of one of following DMRS port, or be mapped as the signal of two ports in following DMRS port: described port 7, described port 8, described port 9, described port one 0.
69. according to the device described in claim 67, it is characterized in that, also comprises: the first indicating module, and for directly or indirectly indicating master sync signal and the corresponding default port of described auxiliary synchronous signals described in receiving terminal.
70. according to the device described in claim 69, it is characterized in that the default port-for-port 7 that described master sync signal is corresponding, the default port-for-port 8 that described auxiliary synchronous signals is corresponding; Or, the default port-for-port 8 that described master sync signal is corresponding, the default port-for-port 7 that described auxiliary synchronous signals is corresponding.
71. according to the device described in claim 67, it is characterized in that, the Physical Resource Block of carrying described PSS and/or described SSS on, while being used as the reference signal of DMRS port with described PSS and/or SSS, the shared RE of port of described DMRS is the Resource Unit RE that described PSS and/or described SSS take, and, the sequence that the port of described DMRS is used is the sequence that described PSS and/or described SSS are used, and the port of described DMRS is one of following: port 7, port 8, port 9, port one 0.
72. according to the device described in claim 67, it is characterized in that, the Physical Resource Block of carrying described PSS and/or described SSS on, described PSS and/or described SSS be during as the reference signal of DMRS port M, port N,
The RE that described DMRS port M takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The RE that described DMRS port N takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
It is one of following that described DMRS port M and DMRS port N are: port 7, port 8, port 9, port one 0, the sequence that described PSS or described SSS are used is the sequence that described DMRS port M is used.
73. according to the device described in claim 67, it is characterized in that, described PSS and/or described SSS be during as the DMRS signal of described DMRS port M and/or described port N, the PRB that carries described PSS and/or described SSS between use identical weights to carry out precoding processing.
74. according to the device described in claim 67, it is characterized in that, the Physical Resource Block of carrying described PSS and/or described SSS on,
When the transmission of alone family, the maximum number of layers that dispatch user data sends is less than or equal to 2;
When multiuser multiplexing transmits, the number of layers that dispatch user data sends is 1, and the data of described multiuser multiplexing transmission send as DMRS port based on described PSS or described SSS.
75. according to the method described in claim 74, it is characterized in that, also comprises:
The second indicating module, for indicating the distribution condition of described DMRS port and described number of layers by down control channel; Or
Notification module, for notify described receiving terminal by high-level signaling, the distribution condition of weights information, described DMRS port and described number of layers that described PSS or described SSS are used; Or
The 3rd processing module, while sending enhancing Physical Downlink Control Channel for the PRB centering at the described PSS of carrying and/or described SSS, default described port numbers.
76. 1 kinds of channel estimating apparatus, are applied to receiving terminal, it is characterized in that comprising:
The 3rd receiver module, for receiving master sync signal PSS and/or auxiliary synchronous signals SSS;
The first channel estimation module, for being used described PSS and/or described SSS to carry out channel estimating;
Wherein, described PSS and/or described SSS are the signal that described network side is mapped as DMRS port, and described DMRS port is the port of the right DMRS of the Physical Resource Block of the described PSS of carrying and/or described SSS.
77. according to the device described in claim 76, it is characterized in that, described the first channel estimation module comprises one of following module:
Second channel estimation module, for using described PSS to carry out the channel estimating of one of following DMRS port:
Port 7, port 8, port 9, port one 0;
The 3rd channel estimation module, for using described SSS to carry out the channel estimating of one of following DMRS port:
Described port 7, described port 8, described port 9, described port one 0;
The 4th channel estimation module, for using described PSS and described SSS to carry out the channel estimating of one of following DMRS port or the channel estimating of two ports in following DMRS port:
Described port 7, described port 8, described port 9, described port one 0;
The 5th channel estimation module, for being used described PSS or described SSS to carry out the channel estimating of described port 7;
The 6th channel estimation module, for being used described PSS or described SSS to carry out the channel estimating of described port 8;
The 8th channel estimation module, for using described PSS or described SSS to carry out the channel estimating of described port 7, and is used described PSS or described SSS to carry out the channel estimating of described port 8.
78. according to the device described in claim 76, it is characterized in that, described receiving terminal directly or is indirectly indicated and determined described master sync signal and default port corresponding to described auxiliary synchronous signals according to described network side.
79. according to the device described in claim 78, it is characterized in that the default port-for-port 7 that described master sync signal is corresponding, the default port-for-port 8 that described auxiliary synchronous signals is corresponding; Or the default port-for-port 8 that described master sync signal is corresponding, the default port-for-port 7 that described auxiliary synchronous signals is corresponding.
80. according to the device described in claim 76, it is characterized in that, the Physical Resource Block of carrying described PSS and/or described SSS on, when the port of use DMRS carries out channel estimating, the shared RE of port of the DMRS of described receiving terminal expectation is the Resource Unit RE that described PSS and/or described SSS take, and the sequence that the port of described DMRS is used is the sequence that described PSS and/or described SSS are used, the port of described DMRS is one of following: port 7, port 8, port 9, port one 0.
81. according to the device described in claim 76, it is characterized in that, the Physical Resource Block of carrying described PSS and/or described SSS on, while using DMRS port M and DMRS port N to carry out channel estimating,
The RE that described DMRS port M takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The RE that described DMRS port N takies is the Resource Unit RE that described PSS or described SSS take, and the sequence that described port M is used is the sequence that described PSS or described SSS are used;
The sequence that described PSS or described SSS are used is the sequence that described DMRS port M is used, and it is one of following that described DMRS port M and DMRS port N are: port 7, port 8, port 9, port one 0.
82. according to the device described in claim 76, it is characterized in that, when using described PSS and/or described SSS to carry out the channel estimating of described DMRS port M and described port N, the Physical Resource Block of the described receiving terminal expectation described PSS of carrying and/or described SSS is identical to precoding weights corresponding to upper DMRS.
83. according to the device described in any one in claim 76 to 82, it is characterized in that, the Physical Resource Block of carrying described PSS and/or described SSS on,
When the transmission of alone family, the maximum number of layers that dispatch user data sends is less than or equal to 2;
When multiuser multiplexing transmits, the number of layers that dispatch user data sends is 1, and the data of described multiuser multiplexing transmission send as DMRS port based on described PSS or described SSS.
84. devices described in 3 according to Claim 8, is characterized in that, also comprise:
The first acquisition module, for by receiving the Downlink Control Information of down control channel, obtains the distribution condition of described DMRS port and described number of layers; Or
The second acquisition module, knows by high-level signaling for described receiving terminal, the distribution condition of weights information, described DMRS port and described number of layers that described PSS or described SSS are used; Or
Presetting module, while sending enhancing Physical Downlink Control Channel for the PRB centering at the described PSS of carrying and/or described SSS, default described port numbers.
The treatment system of 85. 1 kinds of synchronizing signals, is characterized in that comprising: according to the processing unit of the synchronizing signal described in any one in claim 67 to 75 with according to the channel estimating apparatus described in any one in claim 76 to 84.
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