CN107689837A - A kind of synchronous method and device - Google Patents
A kind of synchronous method and device Download PDFInfo
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- CN107689837A CN107689837A CN201610637970.1A CN201610637970A CN107689837A CN 107689837 A CN107689837 A CN 107689837A CN 201610637970 A CN201610637970 A CN 201610637970A CN 107689837 A CN107689837 A CN 107689837A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0602—Systems characterised by the synchronising information used
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
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Abstract
The invention discloses a kind of synchronous method and device, determines the information of master sync signal and the information of auxiliary synchronous signals, and described information includes number and symbol lengths；The master sync signal is synchronized according to the information of the master sync signal, and the auxiliary synchronous signals are synchronized according to the information of the auxiliary synchronous signals, provide the synchronous method that a kind of system supports multiple subcarrier spacings, it is M*15kHz relative to subcarrier spacing, system provides the PSS and SSS of corresponding subcarrier spacing respectively, synchronizing signal expense can be reduced, by sharing some synchronizing signal, reaches the target of cell synchronous.
Description
Technical field
The present embodiments relate to the technical field of communication, more particularly to a kind of synchronous method and device.
Background technology
5G research topic Study on New Radio Access Technology are set up in the plenary sessions of 3GPP RAN 70,
Formal wireless air interface technology (referred to as NR) research for starting 5G.Subcarrier spacing is passed through in group meeting RAN1 84bis
For 15kHz or M*15kHz (wherein M=2^n, n are integer) conclusion.That is more subcarrier spacings are supported in NR, that is, are meaned
A variety of different symbol lengths are supported, single 15kHz subcarrier spacings are only supported different from LTE.
When more subcarrier spacings be present in NR (New Radio), cause to produce different symbol lengths.As different UE
When needing to use the resource at different sub-carrier interval, NR must just support the synchronization of different sub-carrier interval resource, and this causes NR
In Synchronization Design it is more complicated.
The content of the invention
The purpose of the embodiment of the present invention is to propose a kind of synchronous method and device, it is intended to which how solution supports different sons
The problem of source synchronous at carrier wave interval.
To use following technical scheme up to this purpose, the embodiment of the present invention：
In a first aspect, a kind of synchronous method, methods described include：
The information of master sync signal and the information of auxiliary synchronous signals are determined, described information includes number and symbol lengths；
The master sync signal is synchronized according to the information of the master sync signal, and according to the auxiliary synchronous signals
Information the auxiliary synchronous signals are synchronized.
Preferably, the information according to the master sync signal synchronizes to the master sync signal, including：
It is 1 in the number of the master sync signal, subcarrier spacing 15KHz, synchronizing signal PSS cycle are PPSS's
In the case of, then according to the PPSSWith the ratio of the time span of radio frames, it is determined that to obtaining after the master sync signal synchronization
Synchronization frame number.
Preferably, it is described according to the PPSSWith the ratio of the time span of radio frames, it is determined that same to the master sync signal
The synchronization frame number obtained after step, including：
To the synchronization frame number obtained after the master sync signal synchronization, with the PPSSWith the time span of radio frames
Ratio is identical.
Preferably, the synchronization frame number to being obtained after the master sync signal synchronization, with the PPSSWith radio frames
The ratio of time span is identical, including：
If the PPSSEqual to the time span of radio frames, then by obtaining frame synchronization to the synchronous of the master sync signal；
If PPSSIt is equal to the time span of multiple radio frames, then same by the synchronous acquisition N frames to the master sync signal
Step；
If PPSSEqual to the half of the time span of radio frames, then by obtaining field to the synchronous of the master sync signal
It is synchronous.
Preferably, the information according to the auxiliary synchronous signals synchronizes to the auxiliary synchronous signals, including：
If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and passes through synchronously obtaining to the master sync signal
Frame synchronization is taken, then the auxiliary synchronous signals SSS is used for indicating cell ID；
If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and passes through synchronously obtaining to the master sync signal
N frame synchronization is taken, then the auxiliary synchronous signals SSS needs to obtain frame synchronization and indicating cell ID；
If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and passes through synchronously obtaining to the master sync signal
Field sync is taken, then the auxiliary synchronous signals SSS needs to obtain frame synchronization and indicating cell ID.
Preferably, the information according to the auxiliary synchronous signals synchronizes to the auxiliary synchronous signals, including：
If the subcarrier spacing of the auxiliary synchronous signals SSS is 15M KHz, and M is more than 1, then carries out frequency deviation according to SSSm
Estimation, the symbol lengths of 15M kHz subcarrier spacings are obtained, and indicating cell ID adjusted value is obtained after being synchronously superimposed.
Preferably, the information according to the master sync signal synchronizes to the master sync signal, including：
Be in the number of the master sync signal it is multiple and have a variety of distinct symbols length, first sub-carrier at intervals of
15KHz and cycle are PPSSMaster sync signal PSS synchronize, then sub-carrier is at intervals of 15M kHz master sync signal
PSS is synchronized.
Preferably, the sub-carrier is P at intervals of 15KHz and cyclePSSSynchronizing signal PSS synchronize, including：
According to the PPSSWith the ratio of the time span of radio frames, it is determined that to obtaining after the master sync signal synchronization
Synchronization frame number.
Preferably, it is described according to the PPSSWith the ratio of the time span of radio frames, it is determined that same to the master sync signal
The synchronization frame number obtained after step, including：
To the synchronization frame number obtained after the master sync signal synchronization, with the PPSSWith the time span of radio frames
Ratio is identical.
Preferably, the synchronization frame number to being obtained after the master sync signal synchronization, with the PPSSWith radio frames
The ratio of time span is identical, including：
If the PPSSEqual to the time span of radio frames, then by obtaining frame synchronization to the synchronous of the master sync signal；
If PPSSIt is equal to the time span of multiple radio frames, then same by the synchronous acquisition N frames to the master sync signal
Step；
If PPSSEqual to the half of the time span of radio frames, then by obtaining field to the synchronous of the master sync signal
It is synchronous.
Preferably, the sub-carrier synchronizes at intervals of 15M kHz synchronizing signal PSS, including：
It is 15M kHz to the subcarrier spacing, and master sync signal PSSms of the M more than 1 carries out offset estimation, obtains
The symbol lengths of 15M kHz subcarrier spacings；
As the PSS indicating cells group ID, the PSSm is also required to indicate the small district's groups ID of identical.
Preferably, the information according to the auxiliary synchronous signals synchronizes to the auxiliary synchronous signals, including：
If what it is to the master sync signal synchronization gain is frame synchronization, subcarrier spacing is 15KHz auxiliary synchronous signals
SSS is used for indicating cell ID；
If what it is to the master sync signal synchronization gain is N frame synchronization, subcarrier spacing is 15KHz auxiliary synchronous signals
SSS needs to obtain frame synchronization and indicating cell ID；
If what it is to the master sync signal synchronization gain is field sync, subcarrier spacing is that the auxiliary of 15KHz is synchronously believed
Number SSS needs to obtain frame synchronization and indicating cell ID.
Preferably, the information according to the master sync signal synchronizes to the master sync signal, and according to institute
The information for stating auxiliary synchronous signals synchronizes to the auxiliary synchronous signals, including：
If the subcarrier spacing of the PSS and SSS used in synchronization is different, main synchronous letter of the sub-carrier at intervals of 15KHz
Number PSS is synchronized；And sub-carrier is at intervals of 15M kHz, and auxiliary synchronous signals SSSms of the M more than 1 carries out offset estimation, obtains
The symbol lengths of 15M kHz subcarrier spacings are taken, and obtain frame synchronization and indicating cell ID.
Second aspect, a kind of synchronous device, described device include：
Determining module, for determining the information of master sync signal and the information of auxiliary synchronous signals, described information includes number
And symbol lengths；
Synchronization module, the master sync signal is synchronized for the information according to the master sync signal, and according to
The information of the auxiliary synchronous signals synchronizes to the auxiliary synchronous signals.
Preferably, the synchronization module, is specifically used for：
It is 1 in the number of the master sync signal, subcarrier spacing 15KHz, synchronizing signal PSS cycle are PPSS's
In the case of, then according to the PPSSWith the ratio of the time span of radio frames, it is determined that to obtaining after the master sync signal synchronization
Synchronization frame number.
Preferably, the synchronization module, also particularly useful for：
To the synchronization frame number obtained after the master sync signal synchronization, with the PPSSWith the time span of radio frames
Ratio is identical.
Preferably, the synchronization module, also particularly useful for：
If the PPSSEqual to the time span of radio frames, then by obtaining frame synchronization to the synchronous of the master sync signal；
If PPSSIt is equal to the time span of multiple radio frames, then same by the synchronous acquisition N frames to the master sync signal
Step；
If PPSSEqual to the half of the time span of radio frames, then by obtaining field to the synchronous of the master sync signal
It is synchronous.
Preferably, the synchronization module, also particularly useful for：
If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and passes through synchronously obtaining to the master sync signal
Frame synchronization is taken, then the auxiliary synchronous signals SSS is used for indicating cell ID；
If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and passes through synchronously obtaining to the master sync signal
N frame synchronization is taken, then the auxiliary synchronous signals SSS needs to obtain frame synchronization and indicating cell ID；
If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and passes through synchronously obtaining to the master sync signal
Field sync is taken, then the auxiliary synchronous signals SSS needs to obtain frame synchronization and indicating cell ID.
Preferably, the synchronization module, also particularly useful for：
If the subcarrier spacing of the auxiliary synchronous signals SSS is 15M KHz, and M is more than 1, then carries out frequency deviation according to SSSm
Estimation, the symbol lengths of 15M kHz subcarrier spacings are obtained, and indicating cell ID adjusted value is obtained after being synchronously superimposed.
Preferably, the synchronization module, also particularly useful for：
Be in the number of the master sync signal it is multiple and have a variety of distinct symbols length, first sub-carrier at intervals of
15KHz and cycle are PPSSSynchronizing signal PSS synchronize, then sub-carrier enters at intervals of 15M kHz synchronizing signal PSS
Row is synchronous.
Preferably, the synchronization module, also particularly useful for：
According to the PPSSWith the ratio of the time span of radio frames, it is determined that to obtaining after the master sync signal synchronization
Synchronization frame number.
Preferably, the synchronization module, also particularly useful for：
To the synchronization frame number obtained after the master sync signal synchronization, with the PPSSWith the time span of radio frames
Ratio is identical.
Preferably, the synchronization module, also particularly useful for：
If the PPSSEqual to the time span of radio frames, then by obtaining frame synchronization to the synchronous of the master sync signal；
If PPSSIt is equal to the time span of multiple radio frames, then same by the synchronous acquisition N frames to the master sync signal
Step；
If PPSSEqual to the half of the time span of radio frames, then by obtaining field to the synchronous of the master sync signal
It is synchronous.
Preferably, the synchronization module, also particularly useful for：
It is 15M kHz to the subcarrier spacing, and master sync signal PSSms of the M more than 1 carries out offset estimation, obtains
The symbol lengths of 15M kHz subcarrier spacings；
As the PSS indicating cells group ID, the PSSm is also required to indicate the small district's groups ID of identical.
Preferably, the synchronization module, also particularly useful for：
If what it is to the master sync signal synchronization gain is frame synchronization, subcarrier spacing is 15KHz auxiliary synchronous signals
SSS is used for indicating cell ID；
If what it is to the master sync signal synchronization gain is N frame synchronization, subcarrier spacing is 15KHz auxiliary synchronous signals
SSS needs to obtain frame synchronization and indicating cell ID；
If what it is to the master sync signal synchronization gain is field sync, subcarrier spacing is that the auxiliary of 15KHz is synchronously believed
Number SSS needs to obtain frame synchronization and indicating cell ID.
Preferably, the synchronization module, also particularly useful for：
If the subcarrier spacing of the PSS and SSS used in synchronization is different, main synchronous letter of the sub-carrier at intervals of 15KHz
Number PSS is synchronized, and sub-carrier is at intervals of 15M kHz, and auxiliary synchronous signals SSSms of the M more than 1 carries out offset estimation, obtains
The symbol lengths of 15M kHz subcarrier spacings are taken, and obtain frame synchronization and indicating cell ID.
The embodiment of the present invention provides a kind of synchronous method and device, determines the information and auxiliary synchronous signals of master sync signal
Information, described information includes number and symbol lengths；The master sync signal is entered according to the information of the master sync signal
Row is synchronous, and the auxiliary synchronous signals are synchronized according to the information of the auxiliary synchronous signals, and it is more to provide a kind of system support
The synchronous method of individual subcarrier spacing, is M*15kHz relative to subcarrier spacing, and system provides corresponding subcarrier spacing respectively
PSS and SSS, synchronizing signal expense can be reduced, by sharing some synchronizing signal, reach the target of cell synchronous.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of synchronous method provided in an embodiment of the present invention；
Fig. 2 is the schematic flow sheet of another synchronous method provided in an embodiment of the present invention；
Fig. 3 is the schematic flow sheet of another synchronous method provided in an embodiment of the present invention；
Fig. 4 is the synchronous method schematic diagram provided in an embodiment of the present invention for the first situation；
Fig. 5 is the schematic flow sheet of another synchronous method provided in an embodiment of the present invention；
Fig. 6 is the schematic flow sheet of another synchronous method provided in an embodiment of the present invention；
Fig. 7 is the schematic flow sheet of another synchronous method provided in an embodiment of the present invention；
Fig. 8 is the schematic flow sheet of another synchronous method provided in an embodiment of the present invention；
Fig. 9 is a kind of high-level schematic functional block diagram of synchronous device provided in an embodiment of the present invention.
Embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this
The specific embodiment of place description is used only for explaining the embodiment of the present invention, rather than the restriction to the embodiment of the present invention.In addition also
It should be noted that for the ease of describing, the part related to the embodiment of the present invention rather than entire infrastructure are illustrate only in accompanying drawing.
With reference to figure 1, Fig. 1 is a kind of schematic flow sheet of synchronous method provided in an embodiment of the present invention.
As shown in figure 1, the synchronous method includes：
Step 101, the information of master sync signal and the information of auxiliary synchronous signals are determined, described information includes number and symbol
Length；
Specifically, the first situation is：One master sync signal (Primary Synchronization Signal,
PSS), respectively for the auxiliary synchronous signals SSS of a variety of distinct symbols length；
Second of situation be：One auxiliary synchronous signals (Secondary Synchronization Signal, SSS), point
Master sync signal PSS of the safety pin to a variety of distinct symbols length；
The third situation is：PSS used in UE synchronizations is different from SSS subcarrier spacing.
Step 102, the master sync signal is synchronized according to the information of the master sync signal, and according to described auxiliary
The information of synchronizing signal synchronizes to the auxiliary synchronous signals.
The embodiment of the present invention provides a kind of synchronous method, determines the information of master sync signal and the letter of auxiliary synchronous signals
Breath, described information include number and symbol lengths；The master sync signal is carried out according to the information of the master sync signal same
Step, and the auxiliary synchronous signals are synchronized according to the information of the auxiliary synchronous signals, provide a kind of system and support more height
The synchronous method at carrier wave interval, is M*15kHz relative to subcarrier spacing, and system provides the PSS of corresponding subcarrier spacing respectively
And SSS, synchronizing signal expense can be reduced, by sharing some synchronizing signal, reaches the target of cell synchronous.
With reference to figure 2, Fig. 2 is the schematic flow sheet of another synchronous method provided in an embodiment of the present invention.
As shown in Fig. 2 the synchronous method includes：
Step 201, the information of master sync signal and the information of auxiliary synchronous signals are determined, described information includes number and symbol
Length；
Step 202, it is 1 in the number of the master sync signal, subcarrier spacing 15KHz, synchronizing signal PSS cycle
For PPSSIn the case of, then according to the PPSSWith the ratio of the time span of radio frames, it is determined that synchronous to the master sync signal
The synchronization frame number obtained afterwards；
Preferably, it is described according to the PPSSWith the ratio of the time span of radio frames, it is determined that same to the master sync signal
The synchronization frame number obtained after step, including：
To the synchronization frame number obtained after the master sync signal synchronization, with the PPSSWith the time span of radio frames
Ratio is identical.
Preferably, the synchronization frame number to being obtained after the master sync signal synchronization, with the PPSSWith radio frames
The ratio of time span is identical, including：
If the PPSSEqual to the time span of radio frames, then by obtaining frame synchronization to the synchronous of the master sync signal；
If PPSSIt is equal to the time span of multiple radio frames, then same by the synchronous acquisition N frames to the master sync signal
Step；
If PPSSEqual to the half of the time span of radio frames, then by obtaining field to the synchronous of the master sync signal
It is synchronous.
Step 203, if the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and by the master sync signal
It is synchronous obtain frame synchronization, then the auxiliary synchronous signals SSS is used for indicating cell identity (Identity, ID)；It is if described
Auxiliary synchronous signals SSS subcarrier spacing is 15KHz, and obtains N frame synchronization by the synchronization to the master sync signal, then institute
Stating auxiliary synchronous signals SSS needs to obtain frame synchronization and indicating cell ID；If the subcarrier spacing of the auxiliary synchronous signals SSS is
15KHz, and by obtaining field sync to the synchronous of the master sync signal, then the auxiliary synchronous signals SSS needs to obtain frame
Synchronization and indicating cell ID；
Step 204, if the subcarrier spacing of the auxiliary synchronous signals SSS is 15M KHz, and M is more than 1, then according to SSSm
Offset estimation is carried out, obtains the symbol lengths of 15M kHz subcarrier spacings, and indicating cell ID adjustment is obtained after being synchronously superimposed
Value.
Specifically, symbol lengths are expressed as T when group carrier wave is at intervals of 15kHzsymbol, group carrier wave is at intervals of 15M kHz
When symbol lengths be expressed as
The first situation：One master sync signal PSS, respectively for the auxiliary synchronous signals SSS of a variety of distinct symbols length：
With reference to figure 3, Fig. 3 is the schematic flow sheet of another synchronous method provided in an embodiment of the present invention.
Step 301, the synchronization of the first step is obtained by the master sync signal PSS that subcarrier spacing is 15KHz；
If PSS cycle is PPSSWhen, if PPSSEqual to the time span of radio frames, then it is same can synchronously to obtain frame for the first step
Step；If PPSSEqual to the time span of multiple radio frames, then the first step can synchronously obtain N frame synchronization；If PPSSEqual to radio frames
The half of time span, then the first step can synchronously obtain field sync；By that analogy.
(M is the subcarrier spacing to UE configurations to M Symbol Timing, is expressed as 15M kHz and 1) M is more than.
Further, PSS also can indicate that (it is 3 groups to divide all cell ID in such as LTE to small district's groups ID, and PSS may indicate that it
In one group).The ID of PSS instructions represents cell ID group number, and cell ID is together decided on by PSS and SSS in LTE, PSS indicating cells
Which group ID is in, and SSS indicating cells ID is which of this group value, cell ID are together decided on by the two numbers.
Step 302, it is synchronous to obtain second step for the auxiliary synchronous signals SSS that subcarrier spacing is 15KHz by UE；
If the first step can synchronously obtain frame synchronization, auxiliary synchronous signals SSS is used for indicating cell ID；
If first step synchronization gain N frame synchronization, second step synchronously needs to obtain frame synchronization and indicating cell ID；
If first step synchronization gain field sync, second step synchronously needs to obtain frame synchronization and indicating cell ID；
It is other by that analogy.
Step 303, UE (is expressed as 15M kHz, and M is more than 1) auxiliary synchronous signals for the subcarrier spacing of itself configuration
SSSm, it is synchronous to obtain the 3rd step；
Offset estimation is carried out using SSSm, obtains the symbol lengths of 15M kHz subcarrier spacings；
The synchronous stackable indicating cell ID adjusted values of 3rd step, are easy to and the cell physics of 15kHz subcarrier spacing provides
Mutually distinguish in source.
Specifically, the offset estimation that UE is carried out according to synchronizing signal refers to estimating frequency offset, realize that subcarrier aligns, i.e.,
Frequency domain resource is alignd.Symbol lengths refer to：Corresponding time span of the RE resources under different sub-carrier spacing case (referred to as accords with
Number) different, refer to and realize symbol aligned, be i.e. time domain resource aligning.15M subcarrier spacing, and symbol lengths are obtained by SSSm, are
Difference and the ID of 15KHZ cells, SSSm indicate numerical value, and this numerical value is cell ID adjusted value.As sssm indicate IDm,
Sss indicates ID0, and 15M cells ID is finally ID0+Idm.
As shown in figure 4, Fig. 4 is the synchronous method schematic diagram provided in an embodiment of the present invention for the first situation.Such as
Shown in Fig. 4, PSS cycle is field, and SSS cycle is field, and SSSm cycle is a frame.Subcarrier spacing is 15KHz's
PSS is in the symbol 6 of subframe 0 and subframe 5, and the transmission cycle is 5ms.Subcarrier spacing is that 15KHz SSS is in subframe 0 and son
The symbol 5 of frame 5, transmission cycle are 5ms.Subcarrier spacing is that 15M KHz SSSm is in the symbol 4 of subframe 0, sends the cycle
10ms。
With reference to figure 5, Fig. 5 is the schematic flow sheet of another synchronous method provided in an embodiment of the present invention.
As shown in figure 5, the synchronous method includes：
Step 501, the information of master sync signal and the information of auxiliary synchronous signals are determined, described information includes number and symbol
Length；
Step 502, it is multiple and have a variety of distinct symbols length in the number of the master sync signal, between first sub-carrier
It is P to be divided into 15KHz and cyclePSSMaster sync signal PSS synchronize, then sub-carrier synchronous is believed at intervals of the main of 15M kHz
Number PSS is synchronized；
Preferably, the sub-carrier is P at intervals of 15KHz and cyclePSSSynchronizing signal PSS synchronize, including：
According to the PPSSWith the ratio of the time span of radio frames, it is determined that to obtaining after the master sync signal synchronization
Synchronization frame number.
Preferably, it is described according to the PPSSWith the ratio of the time span of radio frames, it is determined that same to the master sync signal
The synchronization frame number obtained after step, including：
To the synchronization frame number obtained after the master sync signal synchronization, with the PPSSWith the time span of radio frames
Ratio is identical.
Preferably, the synchronization frame number to being obtained after the master sync signal synchronization, with the PPSSWith radio frames
The ratio of time span is identical, including：
If the PPSSEqual to the time span of radio frames, then by obtaining frame synchronization to the synchronous of the master sync signal；
If PPSSIt is equal to the time span of multiple radio frames, then same by the synchronous acquisition N frames to the master sync signal
Step；
If PPSSEqual to the half of the time span of radio frames, then by obtaining field to the synchronous of the master sync signal
It is synchronous.
Preferably, the sub-carrier synchronizes at intervals of 15M kHz synchronizing signal PSS, including：
It is 15M kHz to the subcarrier spacing, and master sync signal PSSms of the M more than 1 carries out offset estimation, obtains
The symbol lengths of 15M kHz subcarrier spacings；
As the PSS indicating cells group ID, the PSSm is also required to indicate the small district's groups ID of identical.
Step 503, if to the master sync signal synchronization gain being frame synchronization, subcarrier spacing is the auxiliary of 15KHz
Synchronizing signal SSS is used for indicating cell ID；If what it is to the master sync signal synchronization gain is N frame synchronization, subcarrier spacing
Need to obtain frame synchronization and indicating cell ID for 15KHz auxiliary synchronous signals SSS；If to the master sync signal synchronization gain
It is field sync, then the auxiliary synchronous signals SSS that subcarrier spacing is 15KHz needs to obtain frame synchronization and indicating cell ID.
Specifically, with reference to figure 6, Fig. 6 is the schematic flow sheet of another synchronous method provided in an embodiment of the present invention.
Second of situation：One auxiliary synchronous signals SSS, respectively for the master sync signal PSS of a variety of distinct symbols length：
Step 601, it is identical with the first situation；
Step 602, UE (is expressed as 15M kHz, and M is more than 1) master sync signal for the subcarrier spacing of itself configuration
PSSm, it is synchronous to obtain second step；
Offset estimation is carried out using PSSm, obtains the symbol lengths of 15M kHz subcarrier spacings；
As PSS indicating cells group ID, PSSm is also required to indicate the small district's groups ID of identical.
Step 603, it is synchronous to obtain the 3rd step for the auxiliary synchronous signals SSS that subcarrier spacing is 15KHz by UE；
If the first step can synchronously obtain frame synchronization, auxiliary synchronous signals SSS is used for indicating cell ID；
If first step synchronization gain N frame synchronization, second step synchronously needs to obtain frame synchronization and indicating cell ID；
If first step synchronization gain field sync, second step synchronously needs to obtain frame synchronization and indicating cell ID；
It is other by that analogy.
With reference to figure 7, Fig. 7 is the schematic flow sheet of another synchronous method provided in an embodiment of the present invention.
As shown in fig. 7, the synchronous method includes：
Step 701, the information of master sync signal and the information of auxiliary synchronous signals are determined, described information includes number and symbol
Length；
Step 702, if the subcarrier spacing of the PSS and SSS used in synchronization is different, sub-carrier is at intervals of 15KHz's
Master sync signal PSS is synchronized；And sub-carrier is at intervals of 15M kHz, and auxiliary synchronous signals SSSms of the M more than 1 enters line frequency
Estimation partially, obtains the symbol lengths of 15M kHz subcarrier spacings, and obtains frame synchronization and indicating cell ID.
Specifically, as shown in figure 8, Fig. 8 is the schematic flow sheet of another synchronous method provided in an embodiment of the present invention.
The third situation：PSS used in UE synchronizations is different from SSS subcarrier spacing.
Step 801, the synchronization of the first step is obtained by the master sync signal PSS that subcarrier spacing is 15KHz first.(with
The first situation is identical)
Step 802,15M kHz (are expressed as, and M is more than 1) auxiliary synchronization for the subcarrier spacing of itself configuration by UE
Signal SSSm, it is synchronous to obtain second step
Step 803, offset estimation is carried out using SSSm, obtains the symbol lengths of 15M kHz subcarrier spacings；It is same to obtain frame
Step and indicating cell ID.
With reference to figure 9, Fig. 9 is a kind of high-level schematic functional block diagram of synchronous device provided in an embodiment of the present invention.
As shown in figure 9, the synchronous device includes：
Determining module 901, for determining the information of master sync signal and the information of auxiliary synchronous signals, described information includes individual
Number and symbol lengths；
Synchronization module 902, the master sync signal is synchronized for the information according to the master sync signal, and root
The auxiliary synchronous signals are synchronized according to the information of the auxiliary synchronous signals.
Preferably, the synchronization module 902, is specifically used for：
It is 1 in the number of the master sync signal, subcarrier spacing 15KHz, synchronizing signal PSS cycle are PPSS's
In the case of, then according to the PPSSWith the ratio of the time span of radio frames, it is determined that to obtaining after the master sync signal synchronization
Synchronization frame number.
Preferably, the synchronization module 902, also particularly useful for：
To the synchronization frame number obtained after the master sync signal synchronization, with the PPSSWith the time span of radio frames
Ratio is identical.
Preferably, the synchronization module 902, also particularly useful for：
If the PPSSEqual to the time span of radio frames, then by obtaining frame synchronization to the synchronous of the master sync signal；
If PPSSIt is equal to the time span of multiple radio frames, then same by the synchronous acquisition N frames to the master sync signal
Step；
If PPSSEqual to the half of the time span of radio frames, then by obtaining field to the synchronous of the master sync signal
It is synchronous.
Preferably, the synchronization module 902, also particularly useful for：
If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and passes through synchronously obtaining to the master sync signal
Frame synchronization is taken, then the auxiliary synchronous signals SSS is used for indicating cell ID；
If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and passes through synchronously obtaining to the master sync signal
N frame synchronization is taken, then the auxiliary synchronous signals SSS needs to obtain frame synchronization and indicating cell ID；
If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and passes through synchronously obtaining to the master sync signal
Field sync is taken, then the auxiliary synchronous signals SSS needs to obtain frame synchronization and indicating cell ID.
Preferably, the synchronization module 902, also particularly useful for：
If the subcarrier spacing of the auxiliary synchronous signals SSS is 15M KHz, and M is more than 1, then carries out frequency deviation according to SSSm
Estimation, the symbol lengths of 15M kHz subcarrier spacings are obtained, and indicating cell ID adjusted value is obtained after being synchronously superimposed.
Preferably, the synchronization module 902, also particularly useful for：
Be in the number of the master sync signal it is multiple and have a variety of distinct symbols length, first sub-carrier at intervals of
15KHz and cycle are PPSSSynchronizing signal PSS synchronize, then sub-carrier enters at intervals of 15M kHz synchronizing signal PSS
Row is synchronous.
Preferably, the synchronization module 902, also particularly useful for：
According to the PPSSWith the ratio of the time span of radio frames, it is determined that to obtaining after the master sync signal synchronization
Synchronization frame number.
Preferably, the synchronization module 902, also particularly useful for：
To the synchronization frame number obtained after the master sync signal synchronization, with the PPSSWith the time span of radio frames
Ratio is identical.
Preferably, the synchronization module 902, also particularly useful for：
If the PPSSEqual to the time span of radio frames, then by obtaining frame synchronization to the synchronous of the master sync signal；
If PPSSIt is equal to the time span of multiple radio frames, then same by the synchronous acquisition N frames to the master sync signal
Step；
If PPSSEqual to the half of the time span of radio frames, then by obtaining field to the synchronous of the master sync signal
It is synchronous.
Preferably, the synchronization module 902, also particularly useful for：
It is 15M kHz to the subcarrier spacing, and master sync signal PSSms of the M more than 1 carries out offset estimation, obtains
The symbol lengths of 15M kHz subcarrier spacings；
As the PSS indicating cells group ID, the PSSm is also required to indicate the small district's groups ID of identical.
Preferably, the synchronization module 902, also particularly useful for：
If what it is to the master sync signal synchronization gain is frame synchronization, subcarrier spacing is 15KHz auxiliary synchronous signals
SSS is used for indicating cell ID；
If what it is to the master sync signal synchronization gain is N frame synchronization, subcarrier spacing is 15KHz auxiliary synchronous signals
SSS needs to obtain frame synchronization and indicating cell ID；
If what it is to the master sync signal synchronization gain is field sync, subcarrier spacing is that the auxiliary of 15KHz is synchronously believed
Number SSS needs to obtain frame synchronization and indicating cell ID.
Preferably, the synchronization module 902, also particularly useful for：
If the subcarrier spacing of the PSS and SSS used in synchronization is different, main synchronous letter of the sub-carrier at intervals of 15KHz
Number PSS is synchronized, and sub-carrier is at intervals of 15M kHz, and auxiliary synchronous signals SSSms of the M more than 1 carries out offset estimation, obtains
The symbol lengths of 15M kHz subcarrier spacings are taken, and obtain frame synchronization and indicating cell ID.
The embodiment of the present invention provides a kind of synchronous device, determines the information of master sync signal and the letter of auxiliary synchronous signals
Breath, described information include number and symbol lengths；The master sync signal is carried out according to the information of the master sync signal same
Step, and the auxiliary synchronous signals are synchronized according to the information of the auxiliary synchronous signals, provide a kind of system and support more height
The synchronous method at carrier wave interval, is M*15kHz relative to subcarrier spacing, and system provides the PSS of corresponding subcarrier spacing respectively
And SSS, synchronizing signal expense can be reduced, by sharing some synchronizing signal, reaches the target of cell synchronous.
The technical principle of the embodiment of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain this
The principle of inventive embodiments, and the limitation to protection domain of the embodiment of the present invention can not be construed in any way.Based on herein
Explanation, those skilled in the art, which would not require any inventive effort, can associate the other specific of the embodiment of the present invention
Embodiment, these modes are fallen within the protection domain of the embodiment of the present invention.
Claims (26)
- A kind of 1. synchronous method, it is characterised in that methods described includes：The information of master sync signal and the information of auxiliary synchronous signals are determined, described information includes number and symbol lengths；The master sync signal is synchronized according to the information of the master sync signal, and according to the letter of the auxiliary synchronous signals Breath synchronizes to the auxiliary synchronous signals.
- 2. according to the method for claim 1, it is characterised in that the information according to the master sync signal is to the master Synchronizing signal synchronizes, including：It is 1 in the number of the master sync signal, subcarrier spacing 15KHz, synchronizing signal PSS cycle are PPSSSituation Under, then according to the PPSSWith the ratio of the time span of radio frames, it is determined that the synchronization to being obtained after the master sync signal synchronization Frame number.
- 3. according to the method for claim 2, it is characterised in that described according to the PPSSWith the time span of radio frames Ratio, it is determined that to the synchronization frame number obtained after the master sync signal synchronization, including：To the synchronization frame number obtained after the master sync signal synchronization, with the PPSSWith the ratio of the time span of radio frames It is identical.
- 4. according to the method for claim 3, it is characterised in that the synchronization to being obtained after the master sync signal synchronization Frame number, with the PPSSIt is identical with the ratio of the time span of radio frames, including：If the PPSSEqual to the time span of radio frames, then by obtaining frame synchronization to the synchronous of the master sync signal；If PPSSEqual to the time span of multiple radio frames, then by obtaining N frame synchronization to the synchronous of the master sync signal；If PPSSEqual to the half of the time span of radio frames, then by obtaining field sync to the synchronous of the master sync signal.
- 5. according to the method described in claim 2 to 4 any one, it is characterised in that described according to the auxiliary synchronous signals Information synchronizes to the auxiliary synchronous signals, including：If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and passes through the synchronous getting frame to the master sync signal Synchronous, then the auxiliary synchronous signals SSS is used for indicating cell ID；If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and by obtaining N to the synchronous of the master sync signal Frame synchronization, then the auxiliary synchronous signals SSS need to obtain frame synchronization and indicating cell ID；If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and by obtaining half to the synchronous of the master sync signal Frame synchronization, then the auxiliary synchronous signals SSS need to obtain frame synchronization and indicating cell ID.
- 6. according to the method for claim 5, it is characterised in that the information according to the auxiliary synchronous signals is to described auxiliary Synchronizing signal synchronizes, including：If the subcarrier spacing of the auxiliary synchronous signals SSS is 15MKHz, and M is more than 1, then carries out offset estimation according to SSSm, The symbol lengths of 15MkHz subcarrier spacings are obtained, and indicating cell ID adjusted value is obtained after being synchronously superimposed.
- 7. according to the method for claim 1, it is characterised in that the information according to the auxiliary synchronous signals is to the master Synchronizing signal synchronizes, including：Be in the number of the master sync signal it is multiple and have a variety of distinct symbols length, first sub-carrier at intervals of 15KHz and Cycle is PPSSMaster sync signal PSS synchronize, then sub-carrier carried out at intervals of 15MkHz master sync signal PSS it is same Step.
- 8. according to the method for claim 7, it is characterised in that the sub-carrier is P at intervals of 15KHz and cyclePSS's Synchronizing signal PSS is synchronized, including：According to the PPSSWith the ratio of the time span of radio frames, it is determined that the synchronization to being obtained after the master sync signal synchronization Frame number.
- 9. according to the method for claim 8, it is characterised in that described according to the PPSSWith the time span of radio frames Ratio, it is determined that to the synchronization frame number obtained after the master sync signal synchronization, including：To the synchronization frame number obtained after the master sync signal synchronization, with the PPSSWith the ratio of the time span of radio frames It is identical.
- 10. according to the method for claim 9, it is characterised in that described same to being obtained after the master sync signal synchronization Step-frame number, with the PPSSIt is identical with the ratio of the time span of radio frames, including：If the PPSSEqual to the time span of radio frames, then by obtaining frame synchronization to the synchronous of the master sync signal；If PPSSEqual to the time span of multiple radio frames, then by obtaining N frame synchronization to the synchronous of the master sync signal；If PPSSEqual to the half of the time span of radio frames, then by obtaining field sync to the synchronous of the master sync signal.
- 11. according to the method described in claim 7 to 10 any one, it is characterised in that the sub-carrier at intervals of 15MkHz synchronizing signal PSS is synchronized, including：It is 15MkHz to the subcarrier spacing, and master sync signal PSSms of the M more than 1 carries out offset estimation, obtains 15MkHz The symbol lengths of subcarrier spacing；As the PSS indicating cells group ID, the PSSm is also required to indicate the small district's groups ID of identical.
- 12. according to the method for claim 11, it is characterised in that the information according to the auxiliary synchronous signals is to described Auxiliary synchronous signals synchronize, including：If what it is to the master sync signal synchronization gain is frame synchronization, the auxiliary synchronous signals SSS that subcarrier spacing is 15KHz is used In indicating cell ID；If what it is to the master sync signal synchronization gain is N frame synchronization, subcarrier spacing is 15KHz auxiliary synchronous signals SSS Need to obtain frame synchronization and indicating cell ID；If what it is to the master sync signal synchronization gain is field sync, subcarrier spacing is 15KHz auxiliary synchronous signals SSS Need to obtain frame synchronization and indicating cell ID.
- 13. according to the method for claim 1, it is characterised in that the information according to the master sync signal is to described Master sync signal is synchronized, and the auxiliary synchronous signals are synchronized according to the information of the auxiliary synchronous signals, including：If the subcarrier spacing of the PSS and SSS used in synchronization is different, master sync signal PSS of the sub-carrier at intervals of 15KHz Synchronize；And sub-carrier is at intervals of 15MkHz, and auxiliary synchronous signals SSSms of the M more than 1 carries out offset estimation, obtains The symbol lengths of 15MkHz subcarrier spacings, and obtain frame synchronization and indicating cell ID.
- 14. a kind of synchronous device, it is characterised in that described device includes：Determining module, for determining the information of master sync signal and the information of auxiliary synchronous signals, described information includes number and symbol Number length；Synchronization module, the master sync signal is synchronized for the information according to the master sync signal, and according to described The information of auxiliary synchronous signals synchronizes to the auxiliary synchronous signals.
- 15. device according to claim 14, it is characterised in that the synchronization module, be specifically used for：It is 1 in the number of the master sync signal, subcarrier spacing 15KHz, synchronizing signal PSS cycle are PPSSSituation Under, then according to the PPSSWith the ratio of the time span of radio frames, it is determined that the synchronization to being obtained after the master sync signal synchronization Frame number.
- 16. device according to claim 15, it is characterised in that the synchronization module, also particularly useful for：To the synchronization frame number obtained after the master sync signal synchronization, with the PPSSWith the ratio of the time span of radio frames It is identical.
- 17. device according to claim 16, it is characterised in that the synchronization module, also particularly useful for：If the PPSSEqual to the time span of radio frames, then by obtaining frame synchronization to the synchronous of the master sync signal；If PPSSEqual to the time span of multiple radio frames, then by obtaining N frame synchronization to the synchronous of the master sync signal；If PPSSEqual to the half of the time span of radio frames, then by obtaining field sync to the synchronous of the master sync signal.
- 18. according to the device described in claim 15 to 17 any one, it is characterised in that the synchronization module, it is also specific to use In：If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and passes through the synchronous getting frame to the master sync signal Synchronous, then the auxiliary synchronous signals SSS is used for indicating cell ID；If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and by obtaining N to the synchronous of the master sync signal Frame synchronization, then the auxiliary synchronous signals SSS need to obtain frame synchronization and indicating cell ID；If the subcarrier spacing of the auxiliary synchronous signals SSS is 15KHz, and by obtaining half to the synchronous of the master sync signal Frame synchronization, then the auxiliary synchronous signals SSS need to obtain frame synchronization and indicating cell ID.
- 19. device according to claim 18, it is characterised in that the synchronization module, also particularly useful for：If the subcarrier spacing of the auxiliary synchronous signals SSS is 15MKHz, and M is more than 1, then carries out offset estimation according to SSSm, The symbol lengths of 15MkHz subcarrier spacings are obtained, and indicating cell ID adjusted value is obtained after being synchronously superimposed.
- 20. device according to claim 14, it is characterised in that the synchronization module, also particularly useful for：Be in the number of the master sync signal it is multiple and have a variety of distinct symbols length, first sub-carrier at intervals of 15KHz and Cycle is PPSSSynchronizing signal PSS synchronize, then sub-carrier synchronizes at intervals of 15MkHz synchronizing signal PSS.
- 21. device according to claim 20, it is characterised in that the synchronization module, also particularly useful for：According to the PPSSWith the ratio of the time span of radio frames, it is determined that the synchronization to being obtained after the master sync signal synchronization Frame number.
- 22. device according to claim 21, it is characterised in that the synchronization module, also particularly useful for：To the synchronization frame number obtained after the master sync signal synchronization, with the PPSSWith the ratio of the time span of radio frames It is identical.
- 23. device according to claim 22, it is characterised in that the synchronization module, also particularly useful for：If the PPSSEqual to the time span of radio frames, then by obtaining frame synchronization to the synchronous of the master sync signal；If PPSSEqual to the time span of multiple radio frames, then by obtaining N frame synchronization to the synchronous of the master sync signal；If PPSSEqual to the half of the time span of radio frames, then by obtaining field sync to the synchronous of the master sync signal.
- 24. according to the device described in claim 20 to 23 any one, it is characterised in that the synchronization module, it is also specific to use In：It is 15MkHz to the subcarrier spacing, and master sync signal PSSms of the M more than 1 carries out offset estimation, obtains 15MkHz The symbol lengths of subcarrier spacing；As the PSS indicating cells group ID, the PSSm is also required to indicate the small district's groups ID of identical.
- 25. device according to claim 24, it is characterised in that the synchronization module, also particularly useful for：If what it is to the master sync signal synchronization gain is frame synchronization, the auxiliary synchronous signals SSS that subcarrier spacing is 15KHz is used In indicating cell ID；If what it is to the master sync signal synchronization gain is N frame synchronization, subcarrier spacing is 15KHz auxiliary synchronous signals SSS Need to obtain frame synchronization and indicating cell ID；If what it is to the master sync signal synchronization gain is field sync, subcarrier spacing is 15KHz auxiliary synchronous signals SSS Need to obtain frame synchronization and indicating cell ID.
- 26. device according to claim 14, it is characterised in that the synchronization module, also particularly useful for：If the subcarrier spacing of the PSS and SSS used in synchronization is different, master sync signal PSS of the sub-carrier at intervals of 15KHz Synchronize, and sub-carrier is at intervals of 15MkHz, and auxiliary synchronous signals SSSms of the M more than 1 carries out offset estimation, obtains The symbol lengths of 15MkHz subcarrier spacings, and obtain frame synchronization and indicating cell ID.
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| CN101895982A (en) * | 2010-07-12 | 2010-11-24 | 合肥东芯通信股份有限公司 | Downlink synchronous method, equipment and system applied to long-term evolution |
| WO2015156492A1 (en) * | 2014-04-09 | 2015-10-15 | Lg Electronics Inc. | Method and apparatus for transmitting synchronization signals for a moving cell |
| CN106559206A (en) * | 2015-09-30 | 2017-04-05 | 中兴通讯股份有限公司 | The transmission method and device of synchronizing signal |
| CN107547463A (en) * | 2016-06-29 | 2018-01-05 | 夏普株式会社 | Mapping method, base station and the user equipment of synchronous signaling |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895982A (en) * | 2010-07-12 | 2010-11-24 | 合肥东芯通信股份有限公司 | Downlink synchronous method, equipment and system applied to long-term evolution |
| WO2015156492A1 (en) * | 2014-04-09 | 2015-10-15 | Lg Electronics Inc. | Method and apparatus for transmitting synchronization signals for a moving cell |
| CN106559206A (en) * | 2015-09-30 | 2017-04-05 | 中兴通讯股份有限公司 | The transmission method and device of synchronizing signal |
| CN107547463A (en) * | 2016-06-29 | 2018-01-05 | 夏普株式会社 | Mapping method, base station and the user equipment of synchronous signaling |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110741590A (en) * | 2018-04-03 | 2020-01-31 | Oppo广东移动通信有限公司 | Channel transmission method of unlicensed spectrum, network device and terminal |
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