CN110312302A - New frequency sweeping method and the terminal of newly eating dishes without rice or wine of eating dishes without rice or wine - Google Patents
New frequency sweeping method and the terminal of newly eating dishes without rice or wine of eating dishes without rice or wine Download PDFInfo
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- CN110312302A CN110312302A CN201910388338.1A CN201910388338A CN110312302A CN 110312302 A CN110312302 A CN 110312302A CN 201910388338 A CN201910388338 A CN 201910388338A CN 110312302 A CN110312302 A CN 110312302A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
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Abstract
The present invention provides a kind of newly eat dishes without rice or wine frequency sweeping method and terminal of newly eating dishes without rice or wine, this method comprises: being transformed into frequency-region signal for signal is received for each working band in (NR) working band of newly eating dishes without rice or wine；Judge PSS signal on PSS signal or SSS signal and adjacent sync grid frequency point on synchronous grid frequency point or the SSS signal with the presence or absence of nonoverlapping bandwidth according to grid frequency point synchronous with each working band corresponding No. GSCN；In RSSI value of the RSSI value at least one RE being judged as in the nonoverlapping bandwidth for calculating synchronous grid frequency point there are in the case where nonoverlapping bandwidth as synchronization grid frequency point；In the case where being judged as there is no nonoverlapping bandwidth, RSSI value of the RSSI value of the SS/PBCH full bandwidth of synchronous grid frequency point as synchronization grid frequency point is calculated；And according to calculated RSSI value carry out the sequence of the synchronization grid frequency point to NR working band.It is possible thereby to the rapid frequency-sweeping to NR frequency band be realized with lesser operand and amount of storage, so as to shortening the frequency sweep time.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of NR (New Radio, newly eat dishes without rice or wine) frequency sweeping method and NR are whole
End.
Background technique
Under normal circumstances, NR terminal carries out the frequency sweep of NR frequency band when net is searched in progress NR frequency band (NR band) first, from
And the frequency point ranking results of synchronous grid (Synchronization Raster) are obtained, then frequency point carries out PSS one by one
(Primary synchronization signal, primary synchronization signal)/SSS (SSS, Secondary synchronization
Signal, secondary synchronization signal)/PBCH (Physical broadcast channel, Physical Broadcast Channel) detection and demodulation,
To search out the strongest NR frequency point of cell signal as early as possible.
When carrying out the frequency sweep of NR frequency band, in one aspect, NR frequency band can be carried out using time domain RSSI (Received
Signal Strength Indication, received signal strength indicator) frequency sweep, but for the granularity of frequency domain, usually
It can be the lesser Sub-Band of bandwidth (sub-band) by NR frequency band cutting, thus cause the frequency sweep time longer, and there are edges
Fuzzy problem.On the other hand, the frequency sweep using frequency domain RSSI can be carried out to NR frequency band, in this way can for big bandwidth into
Row FFT (Fast Fourier Transformation, Fast Fourier Transform (FFT)) is to be converted into frequency domain, to calculate RSSI.This
The frequency sweep time of kind mode is shorter, and can overcome the problems, such as edge blurry by carrying out frequency spectrum splicing.However, using
In the case that frequency domain RSSI carries out frequency sweep, due to needing to carry out frequency spectrum splicing, and need to sampled point meter all on frequency domain
RSSI is calculated, therefore the operand of its realization and amount of storage are all larger, this can also consume frequency sweep to a certain extent and search the net time.
In addition, according to the associated description in 3GPP agreement 38.211/38.101, SS/PBCH (Synchronization
Signal/Physical Broadcast Channel, synchronization signal/Physical Broadcast Channel) bandwidth be 240 RE
(Resource Element, resource particle), and the position of the synchronization grid of NR frequency band is fixed.For this purpose, using frequency
When domain RSSI carries out frequency sweep, the RSSI in its SS/PBCH bandwidth can be calculated separately, so using each synchronous grid as center frequency point
It directly sorts afterwards, thus the step of saving frequency spectrum splicing.However, when this frequency sweep using frequency domain RSSI still has realization
Operand and amount of storage is larger and frequency sweep searches net time longer problem.
Existing technical literature
3GPP 38104-f30.doc
3GPP 38211-f30.doc
3GPP 38213-f30.doc
3GPP 38101-1-f30.doc
3GPP 38101-2-f30.doc
Summary of the invention
In view of this, in one aspect, the present invention provides a kind of frequency sweeping method of newly eating dishes without rice or wine, comprising: for work of newly eating dishes without rice or wine
Each working band in frequency band is transformed into frequency-region signal for signal is received；It is opposite according to grid frequency point synchronous with each working band
The global synchronization channel number answered judges primary synchronization signal on the synchronization grid frequency point or secondary synchronization signal and adjacent sync grid
Primary synchronization signal or secondary synchronization signal on lattice frequency point whether there is nonoverlapping bandwidth；It is being judged as that there are nonoverlapping bandwidth
In the case where, the receiving intensity signal for calculating at least one resource particle in nonoverlapping bandwidth of the synchronization grid frequency point refers to
Receiving intensity signal designation value of the indicating value as the synchronization grid frequency point；It is being judged as the case where there is no nonoverlapping bandwidth
Under, the synchronization signal/Physical Broadcast Channel full bandwidth receiving intensity signal designation value for calculating the synchronization grid frequency point, which is used as, is somebody's turn to do
The receiving intensity signal designation value of synchronous grid frequency point；And it is carried out according to the calculated receiving intensity signal designation value of institute pair
The sequence of the synchronization grid frequency point of the working band of newly eating dishes without rice or wine.
For above-mentioned frequency sweeping method of newly eating dishes without rice or wine, in one possible implementation, according to synchronous with each working band
The corresponding global synchronization channel number of grid frequency point judges primary synchronization signal or secondary synchronization signal on the synchronization grid frequency point
With on adjacent sync grid frequency point primary synchronization signal or secondary synchronization signal whether there is nonoverlapping bandwidth, comprising: according to
The corresponding global synchronization channel number of synchronization grid frequency point of each working band determines the subcarrier spacing of each working band；With
And primary synchronization signal or auxiliary on the synchronization grid frequency point is judged according to the subcarrier spacing for each working band determined
Primary synchronization signal or secondary synchronization signal in synchronization signal and adjacent sync grid frequency point whether there is nonoverlapping bandwidth.
For above-mentioned frequency sweeping method of newly eating dishes without rice or wine, in one possible implementation, according to each work frequency determined
The subcarrier spacing of band judges primary synchronization signal on the synchronization grid frequency point or secondary synchronization signal and adjacent sync grid frequency
Primary synchronization signal or secondary synchronization signal on point whether there is nonoverlapping bandwidth, comprising: in the subcarrier spacing be 15KHz
Or in the case where 120KHz, the primary synchronization signal or secondary synchronization signal and adjacent sync grid that are judged as on the synchronization grid frequency point
There are nonoverlapping bandwidth for primary synchronization signal or secondary synchronization signal on frequency point；And the subcarrier spacing be 30KHz or
In the case where 240KHz, the primary synchronization signal or secondary synchronization signal and adjacent sync grid being judged as on the synchronization grid frequency point are frequently
Nonoverlapping bandwidth is not present in primary synchronization signal or secondary synchronization signal on point.
There are nonoverlapping bands to be judged as in one possible implementation for above-mentioned frequency sweeping method of newly eating dishes without rice or wine
In the case where width, the receiving intensity signal of at least one resource particle in nonoverlapping bandwidth of the synchronization grid frequency point is calculated
Receiving intensity signal designation value of the indicated value as the synchronization grid frequency point, comprising: calculate not being overlapped for the synchronization grid frequency point
Bandwidth in the receiving intensity signal designation values of whole resource particles refer to as the receiving intensity signal of the synchronization grid frequency point
Indicating value.
Institute is belonged in the synchronization grid frequency point in one possible implementation for above-mentioned frequency sweeping method of newly eating dishes without rice or wine
In the case where stating the frequency range 1 in working band of newly eating dishes without rice or wine, the quantity of whole resource particles in nonoverlapping bandwidth
It is 32；It is described not weigh and in the case where the synchronization grid frequency point belongs to frequency range 2 in the working band of newly eating dishes without rice or wine
The quantity of whole resource particles in folded bandwidth is 48, wherein the frequency range 1 is 0~24250MHz and the frequency
Rate range 2 is 24250~100000MHz.
For above-mentioned frequency sweeping method of newly eating dishes without rice or wine, in one possible implementation, received by force according to institute is calculated
Degree signal designation value come carry out to it is described newly eat dishes without rice or wine working band synchronization grid frequency point sequence before, further includes: will be counted
The receiving intensity signal designation value of calculating divided by used resource grains subnumber when calculating the receiving intensity signal designation value, with into
Row normalization.
On the other hand, the present invention provides a kind of terminal of newly eating dishes without rice or wine, comprising: frequency-domain transform module is newly eated dishes without rice or wine for being directed to
Each working band in working band is transformed into frequency-region signal for signal is received；It is not overlapped judgment module, for basis and each work
Make the corresponding global synchronization channel number of synchronization grid frequency point of frequency band to judge the primary synchronization signal on the synchronization grid frequency point
Or primary synchronization signal on secondary synchronization signal and adjacent sync grid frequency point or secondary synchronization signal whether there is nonoverlapping bandwidth；
Computing module, for being judged as that there are in the case where nonoverlapping bandwidth, calculate the synchronization grid in the judgment module that is not overlapped
The receiving intensity signal designation value of at least one resource particle in nonoverlapping bandwidth of lattice frequency point is as the synchronization grid frequency
The receiving intensity signal designation value of point, and it is judged as the case where there is no nonoverlapping bandwidth in the judgment module that is not overlapped
Under, the synchronization signal/Physical Broadcast Channel full bandwidth receiving intensity signal designation value for calculating the synchronization grid frequency point, which is used as, is somebody's turn to do
The receiving intensity signal designation value of synchronous grid frequency point；And sorting module, for calculated according to the computing module
Receiving intensity signal designation value come carry out to it is described newly eat dishes without rice or wine working band synchronization grid frequency point sequence.
For above-mentioned terminal of newly eating dishes without rice or wine, in one possible implementation, the judgment module that is not overlapped is comprised determining that
Unit, for determining each working band according to the corresponding global synchronization channel number of grid frequency point synchronous with each working band
Subcarrier spacing；And judging unit, between the subcarrier of each working band for being determined according to the determination unit
Every judging that primary synchronization signal on the synchronization grid frequency point or secondary synchronization signal are main synchronous on adjacent sync grid frequency point
Signal or secondary synchronization signal whether there is nonoverlapping bandwidth.
For above-mentioned terminal of newly eating dishes without rice or wine, in one possible implementation, in the son that the determination unit is determined
In the case that intercarrier is divided into 15KHz or 120KHz, the judging unit is judged as the main synchronous letter on the synchronization grid frequency point
Number or the primary synchronization signal on secondary synchronization signal and adjacent sync grid frequency point or secondary synchronization signal there are nonoverlapping bandwidth；With
And in the case where the subcarrier spacing that the determination unit is determined is 30KHz or 240KHz, the judging unit judgement
For on the primary synchronization signal or secondary synchronization signal and adjacent sync grid frequency point on the synchronization grid frequency point primary synchronization signal or
Nonoverlapping bandwidth is not present in secondary synchronization signal.
Above-mentioned terminal of newly eating dishes without rice or wine is judged as in the judgment module that is not overlapped in one possible implementation
There are in the case where nonoverlapping bandwidth, the computing module calculates the whole in nonoverlapping bandwidth of the synchronization grid frequency point
Receiving intensity signal designation value of the receiving intensity signal designation value of resource particle as the synchronization grid frequency point.
For above-mentioned terminal of newly eating dishes without rice or wine, in one possible implementation, belong in the synchronization grid frequency point described new
In the case where the frequency range 1 eated dishes without rice or wine in working band, the quantity of whole resource particles in nonoverlapping bandwidth is 32；
It is described nonoverlapping and in the case where the synchronization grid frequency point belongs to frequency range 2 in the working band of newly eating dishes without rice or wine
The quantity of whole resource particles in bandwidth is 48, wherein the frequency range 1 is 0~24250MHz and the frequency model
Enclosing 2 is 24250~100000MHz.
For above-mentioned terminal of newly eating dishes without rice or wine, in one possible implementation, further includes: normalization module is used for institute
Used resource grains subnumber when calculated receiving intensity signal designation value is divided by the calculating receiving intensity signal designation value, with
It is normalized.
The NR frequency sweeping method and NR terminal provided according to embodiments of the present invention, can be in the resolution for not influencing NR frequency point
In the case where ranking results, by only calculate using synchronize grid frequency point between center frequency point and adjacent NR frequency point PSS signal or
RSSI of the RSSI of SSS signal not at least one RE in lap bandwidth as the synchronization grid frequency point.Thus, it is possible to nothing
Need to sampled points all on NR frequency band frequency domain calculate RSSI, so as to lesser operand and amount of storage come realize to NR frequency
The rapid frequency-sweeping of band, it is possible thereby to shorten the frequency sweep time to a certain extent.
According to below with reference to the accompanying drawings becoming to detailed description of illustrative embodiments, other feature of the invention and aspect
It is clear.
Detailed description of the invention
Comprising in the description and constitute the attached drawing of part of specification and specification together illustrate it is of the invention
Exemplary embodiment, feature and aspect, and principle for explaining the present invention.
Fig. 1 shows the schematic diagram of the process of NR cell searching.
Fig. 2 shows the schematic diagrames of the process of NR frequency sweeping method according to an embodiment of the invention.
Fig. 3 shows the schematic diagram of the process of NR frequency sweeping method according to another embodiment of the present invention.
Fig. 4 shows the schematic diagram of the overlapping judgement of the PSS signal of adjacent sync grid frequency point.
Fig. 5 shows the schematic diagram of the process of NR frequency sweeping method according to another embodiment of the present invention.
Fig. 6 shows the structural block diagram of NR terminal according to an embodiment of the invention.
Fig. 7 shows the structural block diagram of NR terminal according to another embodiment of the present invention.
Specific embodiment
Below with reference to attached drawing various exemplary embodiments, feature and the aspect that the present invention will be described in detail.It is identical in attached drawing
Appended drawing reference indicate element functionally identical or similar.Although the various aspects of embodiment are shown in the attached drawings, remove
It non-specifically points out, it is not necessary to attached drawing drawn to scale.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, in order to better illustrate the present invention, numerous details is given in specific embodiment below.
It will be appreciated by those skilled in the art that without certain details, the present invention equally be can be implemented.In some instances, for
Method, means, element and circuit well known to those skilled in the art are not described in detail, in order to highlight purport of the invention.
As stated in the background art, in the prior art, sweep NR frequency band in the NR terminal of mobile terminal etc.
Frequency is searched in network process, can carry out frequency sweep using time domain RSSI, but there are problems that frequency sweep time length and edge blurry.In order to
Accelerate frequency sweep time and reply edge blurry phenomenon, it will usually which frequency sweep is carried out using frequency domain RSSI.By this method, although solution
The problem of edge blurry of having determined and reduce the frequency sweep time, but it needs all sampled points on the frequency domain to NR frequency band to calculate
RSSI, or even frequency spectrum splicing is carried out, when thus causing its operand and amount of storage all larger, while also consuming frequency sweep and search net
Between.
In addition, the bandwidth of SS/PBCH is 240 RE according to the associated description in 3GPP agreement 38.211/38.101, and
And the position of the synchronization grid of NR frequency band is fixed.For this purpose, carrying out frequency sweep using frequency domain RSSI, it can be with each synchronous grid
For center frequency point, the RSSI in its SS/PBCH bandwidth is calculated separately, is then directly sorted, thus the step of saving frequency spectrum splicing.
In this way, operand and amount of storage can be reduced to a certain extent and shorten the frequency sweep time.However, in this way, due to
It needs all sampled points on the frequency domain to NR frequency band to calculate RSSI, causes its operand still larger with amount of storage, thus cause
It is still longer that frequency sweep searches the net time.
In view of this, the present invention provides a kind of NR frequency sweeping method and NR terminal based on frequency domain RSSI, it can be in not shadow
In the case where the resolution and ranking results that ring NR frequency point, by only calculating to synchronize grid as center frequency point and adjacent NR frequency point
Between PSS signal or the RSSI of SSS signal overlap fewer parts (or not lap) bandwidth calculate synchronous grid frequency point RSSI.
Thus, it is possible to without calculating RSSI to sampled points all on NR frequency band frequency domain, so as to lesser operand and amount of storage
To realize to NR frequency band (FR1 (Frequency range 1, frequency range 1)/FR2 (Frequency range 2, frequency band model
Enclose 2)) rapid frequency-sweeping, it is possible thereby to a certain extent shorten the frequency sweep time.
It should be noted that NR terminal includes but is not limited to the shape of the mobile terminal of smart phone and tablet computer etc.
State.
According to the description that Section 4.1 of 38.213 agreement of 3GPP and 38.101-1 agreement 5.4.3 are saved, as shown in Figure 1, NR
Cell searching includes following three step: synchronous grid frequency point searches for (Synchronization Raster Search), cell
When frequency deviation synchronous (Time-Freq Acquisition) and cell ID detection (Cell ID Detect).NR cell searching
Speed is usually codetermined by three above step.Wherein, NR frequency point, which searches for the step and is common in NR frequency band frequency sweep, searches net, this
It is also main optimization direction of the invention.
The process of NR frequency sweeping method of the invention is specifically described according to fig. 2~5 below.In the drawings, identical
Appended drawing reference indicate the same or similar meaning, and redundant description will be omitted.
Fig. 2 shows the schematic diagrames of the process of NR frequency sweeping method according to an embodiment of the invention.
As shown in Fig. 2, this method mainly comprises the steps that
Step S101, frequency-region signal is transformed by signal is received for each working band in NR working band；
Step S102, the synchronization grid is judged according to synchronous with each working band grid frequency point corresponding No. GSCN
PSS signal or SSS signal on frequency point on adjacent sync grid frequency point PSS signal or SSS signal with the presence or absence of not be overlapped
Bandwidth；
Step S103, being judged as there are in the case where nonoverlapping bandwidth, not being overlapped for the synchronization grid frequency point is calculated
Bandwidth at least one resource particle RSSI value of the RSSI value as the synchronization grid frequency point；
Step S104, in the case where being judged as there is no nonoverlapping bandwidth, the SS/ of the synchronization grid frequency point is calculated
RSSI value of the RSSI value of PBCH as the synchronization grid frequency point；And
Step S106, according to calculated RSSI value carry out the sequence of the synchronization grid frequency point to NR frequency band.
The NR frequency sweeping method provided according to embodiments of the present invention can be tied in the resolution and sequence for not influencing NR frequency point
In the case where fruit, by only calculating, to synchronize grid frequency point, PSS signal or SSS signal be not between center frequency point and adjacent NR frequency point
RSSI of the RSSI of at least one RE in lap bandwidth as the synchronization grid frequency point.Thus, it is possible to without to NR frequency
On band frequency domain all sampled points calculate RSSI, so as to be realized with lesser operand and amount of storage to the quick of NR frequency band
Frequency sweep, it is possible thereby to shorten the frequency sweep time to a certain extent.
Below by the detailed process of specific detailed step S101~S106 respectively.
For above-mentioned steps S101, NR terminal carries out FFT change for each working band in NR frequency band, to signal is received
It changes, to obtain frequency-region signal.NR frequency band may include FR1 and FR2.FR1 is the frequency range of 0~24250MHz, and can be with
Including in table 1 as be described hereinafter NR working band n1, n2 ..., n78, n79 etc..FR2 is the frequency of 24250~100000MHz
Range, and may include NR working band n257, n258, n260 and n261 etc. in table 2 as be described hereinafter.Specifically,
It, can be according to the size of each NR frequency band and the ability of Terminal Design, by using big bandwidth in a kind of possible implementation
The FFT of Sub-Band (sub-band) will receive signal and be converted into frequency domain.Generally, it is contemplated the length to SS/PBCH is
4symbol (symbol), and according to Section 4.1 of 3GPP 38.213 of description, (20ms+4symbol) is selected for initial cell
Continuous time period in reception signal, FFT transform and cumulative is done for each Symbol, thus to obtain the big bandwidth Sub-
Frequency-region signal (i.e. frequency sampling list) on Band.
Thus, it is possible to obtain frequency signal for each working band in NR working band.
For above-mentioned steps S102, NR terminal carries out PSS signal or the judgement of SSS signal overlap.Specifically, NR terminal root
According to corresponding GSCN (the Global Synchronization Channel of grid frequency point synchronous with each working band
Number global synchronization channel number) judge PSS signal on the synchronization grid frequency point or SSS signal and adjacent sync grid frequency
PSS signal or SSS signal on point whether there is nonoverlapping bandwidth.
In one possible implementation, as shown in figure 3, above-mentioned steps S102 may comprise steps of:
Step S1021, each work frequency is determined according to grid frequency point synchronous with each working band corresponding No. GSCN
The SCS (Subcarrier spacing, subcarrier spacing) of band；And
Step S1022, the PSS letter on the synchronization grid frequency point is judged according to the SCS for each working band determined
Number or the PSS signal on SSS signal and adjacent sync grid frequency point or SSS signal whether there is nonoverlapping bandwidth.
Specifically, for above-mentioned steps S1021, between the subcarrier that each working band can be determined based on table 1 or table 2
Every.
Table 1 corresponds to the NR working band in FR1 and (more specifically corresponds to each synchronous grid frequency in NR working band
Point).For example, being 5279~5419 for the range of NR working band n1, GSCN, and each synchronization in NR working band n1
SCS corresponding to the GSCN of grid frequency point is 15kHz.For another example, for the range of NR working band n5, GSCN be 2177~
2230 and 2183~2224, and if the GSCN of the synchronization grid frequency point in NR working band n5 in range 2177~2230
Interior, then SCS corresponding to the GSCN of the synchronization grid frequency point is 15kHz, and if synchronization grid in NR working band n5
The GSCN of frequency point is in range 2183~2224, then SCS corresponding to the GSCN of the synchronization grid frequency point is 30kHz.For FR1
In other working bands, can similarly determine SCS corresponding to the GSCN of each synchronous grid frequency point.
In addition, table 2 corresponds to the NR working band in FR2.For example, for the range of NR working band n257, GSCN
22388~22558 and 22390~22556, and if the GSCN of the synchronization grid frequency point in NR working band n257 in model
It encloses in 22388~22558, then SCS corresponding to the GSCN of the synchronization grid frequency point is 120kHz, and if NR working band
The GSCN of synchronization grid frequency point in n257 is in range 22390~22556, then corresponding to the GSCN of the synchronization grid frequency point
SCS is 240kHz.For other working bands in FR2, corresponding to the GSCN that can similarly determine each synchronous grid frequency point
SCS.
Thus, it is possible to be based on table 1 or table 2, for each working band, determined according to No. GSCN of synchronous grid frequency point each
The SCS of working band.
Table 1: it is directed to the applicable SS grid entry (FR1) of each working band
Table 2: it is directed to the applicable SS grid entry (FR2) of each working band
It, can be according to the SCS of each working band after the SCS that each working band has been determined for above-mentioned steps S1022
To judge the PSS signal of each synchronous grid frequency point in the working band or the PSS letter of SSS signal and adjacent sync grid frequency point
Number or SSS signal whether there is nonoverlapping bandwidth.
It will be specifically described below to the PSS signal or SSS signal of adjacent sync grid frequency point with the presence or absence of nonoverlapping band
Wide judgement.Since the SSS of overlapping range and adjacent sync grid frequency point between the PSS signal of adjacent sync grid frequency point believes
Overlapping range between number is consistent, therefore below by the overlapping between the PSS signal for only illustrating adjacent sync grid frequency point.
According to the description that 3GPP 38.101-1/2 agreement 5.4.3 is saved, the minimum interval of NR cell synchronous grid frequency point is pressed
According to the difference of FR1 and FR2, meet the constraint in the following table 3 and 4 respectively.
Table 3: GSCN parameter (FR1) used in global frequency point grid
Table 4: GSCN parameter (FR2) used in global frequency point grid
On the other hand, the description saved according to 38.211 agreement 7.4.3 of 3GPP, the bandwidth of SS/PBCH are 240 RE, tool
Body such as the following table 5.
Resource of the DM-RS of table 5:PSS, SSS, PBCH and PBCH in SS/PBCH block
If having SS/PBCH signal on the synchronous grid frequency point of adjacent two, it can be seen that the SCS in FR1 is
When the SCS of 15KHz or FR2 is 120KHz, the RE on the fractional bandwidth of PSS signal is nonoverlapping.For example, as shown in figure 4, examining
Consider following scene: having SS/PBCH signal on adjacent three synchronous grid frequency points, and can be seen that in synchronous grid
PSS signal on each 16 RE (FR1)/24 RE (FR2) of center frequency point or so is unfolded.That is, in NR frequency
When the SCS of band is 15kHz (FR1) or 120kHz (FR2), the RE on the fractional bandwidth of PSS signal be it is nonoverlapping, i.e., it is adjacent
There are nonoverlapping bandwidth for the PSS signal of two synchronous grid frequency points, and the RE number of nonoverlapping bandwidth is 32 (FR1) or 48
(FR2)。
On the other hand, when the SCS of FR1 is 30kHz or the SCS of FR2 is 240kHz, in adjacent two synchronous grid frequencies
On point, PSS signal is completely overlapped.That is, being that 30kHz (FR1) or 240kHz (correspond in the SCS of NR frequency band
When FR2), RE on the SS/PBCH full bandwidth of PSS signal is completely overlapped, and (all 240 RE i.e. on SS/PBCH full bandwidth are equal
Overlapping).In other words, in this case, nonoverlapping band is not present in the PSS signal of adjacent two synchronous grid frequency points
It is wide.
For above-mentioned steps S103, exist not between the PSS signal or SSS signal for being judged as adjacent sync grid frequency point
In the case where the bandwidth of overlapping, the RSSI value for calculating at least one RE in nonoverlapping bandwidth of synchronous grid frequency point, which is used as, is somebody's turn to do
The RSSI value of synchronous grid frequency point.
Specifically, when the SCS of FR1 is 15KHz or the SCS of FR2 is 120KHz, as shown in figure 4, adjacent three are same
There is SS/PBCH signal on step grid frequency point, that is, SS Raster1 frequency point, SS Raster2 frequency point and SS Raster3 frequency point, and
And it can be seen that the PSS signal on the center frequency point of synchronous grid or so each 16 RE (FR1)/24 RE (FR2) is that do not have
Overlapping.In this case, if only calculating the RSSI of this unfolded fractional bandwidth of PSS signal, as shown in 4 figures,
The RSSI of SS Raster2 frequency point has been superimposed the PBCH/SSS signal of SS Raster1 and SS Raster3.Specifically, each same
The RSSI for walking grid is as shown in table 6 below.
Table 6
In upper table 6, PSS1, PSS2 and PSS3 respectively indicate SS Raster1 frequency point, SS Raster2 frequency point and SS
The PSS of Raster3 frequency point.Further, since the unit of RSSI be all EPRE (Energy per resource element, each
The energy of resource particle), therefore SSS is identical as the EPRE of PBCH, therefore is collectively expressed as SSB (Synchronization
Signal Block, synchronization signal block).In other words, SSB1, SSB2, SSB3 respectively indicate SS Raster1 frequency point, SS
The SSS+PBCH of Raster2 frequency point and SS Raster3 frequency point.
In addition, in upper table 6, it is assumed that SS Raster1 frequency point, SS Raster2 frequency point and SS Raster3 frequency point it is true
Real RSSI strong or weak relation is as follows:
(1) SS Raster2 is strong, and SS Raster1/3 is weak.According to the formula of upper table, three can be clearly distinguished
RSSI strong or weak relation.That is, SS Raster2 is most strong, SS Raster1 takes second place, and SS Raster3 is most weak (wherein, false in advance
If SS Raster1 is better than SS Raster3).
(2) SS Raster1/3 is strong, and SS Raster2 is weak.It is all folded since SS Raster2 is in the full bandwidth of SS/PBCH
The SS Raster1/3 signal of identical RE number is added, therefore has whether calculated the RSSI on SS/PBCH full bandwidth, has still only calculated
The RSSI of RE number in upper table 6 can not clearly distinguish the power of these three SS Raster.
Therefore, the PSS signal of adjacent cells frequency point is only calculated there is no the RSSI of the fractional bandwidth of overlapping, has no effect on NR
The resolution and ranking results of frequency point.
Therefore, in step s 103, in the PSS signal or SSS signal and adjacent sync grid for being judged as synchronous grid frequency point
There are in the case where nonoverlapping bandwidth between the PSS signal or SSS signal of lattice frequency point, for the synchronization grid frequency point, instead of
The RSSI value for calculating SS/PBCH full bandwidth, the RSSI value that can only calculate a part of RE in the fractional bandwidth of overlapping, which is used as, is somebody's turn to do
The RSSI value of synchronous grid frequency point.
In a kind of possible mode, in the PSS signal or SSS signal and adjacent sync grid for being judged as synchronous grid frequency point
There are in the case where nonoverlapping bandwidth, can calculate the synchronization grid frequency point between the PSS signal or SSS signal of lattice frequency point
RSSI value of the RSSI value of a RE in nonoverlapping bandwidth as the synchronization grid frequency point.Preferably, it is same that this can be calculated
RSSI value of the RSSI value of multiple RE in nonoverlapping bandwidth of grid frequency point as the synchronization grid frequency point is walked, wherein this is more
A RE can be continuously, be also possible to discrete.It is highly preferred that nonoverlapping bandwidth of the synchronization grid frequency point can be calculated
In whole RE (i.e. 32 RE (FR1) or 48 RE (FR2)) RSSI value of the RSSI value as the synchronization grid frequency point.
For above-mentioned steps S104, in the PSS signal or SSS signal and adjacent sync grid for being judged as synchronous grid frequency point
There are the SS/ in the case where nonoverlapping bandwidth, calculating the synchronization grid frequency point between the PSS signal or SSS signal of frequency point
RSSI value of the RSSI value of PBCH full bandwidth as the synchronization grid frequency point.This is because in the PSS of adjacent sync grid frequency point
In the case that signal or SSS signal are completely overlapped, need to calculate the RSSI of SS/PBCH full bandwidth, just can ensure that does not influence NR frequency
The resolution and ranking results of point.From above-mentioned table 1 and 2 as can be seen that on the corresponding SS Raster of certain GSCN, due to
SCS is respectively 30KHz and 240KHz, therefore can only calculate the RSSI of SS/PBCH full bandwidth.
That is, in the PSS signal or SSS signal and adjacent sync grid frequency point for being judged as synchronous grid frequency point
Between PSS signal or SSS signal it is completely overlapped in the case where, calculate the synchronization grid frequency point all 240 RE RSSI value
RSSI value as the synchronization grid frequency point.
For above-mentioned steps S106, can according to calculated RSSI value carry out the synchronization grid to whole NR frequency bands
The sequence of frequency point.
In one possible implementation, as shown in figure 5, before above-mentioned steps S106, the frequency sweep side NR of the invention
Method can with the following steps are included:
Step S105, used RE number when by the calculated RSSI value of institute divided by the calculating RSSI value, to carry out normalizing
Change.
It, can be with specifically, after calculating the RSSI value of each synchronous grid frequency point in above-mentioned steps S103 and S104
Used RE number, is normalized to RE Level for RSSI value when by the calculated RSSI value of institute divided by the calculating RSSI value
(RE grades), to be detached from the association of bandwidth.In addition, in one possible implementation, it can be by the calculated RSSI value of institute
It is stored according to synchronous grid frequency point.
As a result, in step s 106, synchronous grid can be obtained according to the RSSI value stored according to synchronous grid frequency point
Lattice frequency point ranking results.Due to the RSSI value stored on each synchronous grid frequency point, bandwidth is normalized, therefore not
By being to calculate the RSSI of SS/PBCH full bandwidth, or only calculate at least one RE in PSS unfolded fractional bandwidth
RSSI value can directly be compared sequence, to obtain synchronous grid frequency point ranking results.
The NR frequency sweeping method provided according to embodiments of the present invention can be tied in the resolution and sequence for not influencing NR frequency point
In the case where fruit, PSS signal on synchronous grid frequency point or SSS signal and adjacent sync grid frequency point are judged by No. GSCN
On PSS signal or SSS signal whether there is nonoverlapping bandwidth.If it is present only calculating and being with the synchronization grid frequency point
The RSSI conduct of PSS signal or SSS signal not at least one RE of the bandwidth of lap between center frequency point and adjacent NR frequency point
The RSSI of the synchronization grid frequency point；And if it does not exist, then calculate the RSSI of the SS/PBCH full bandwidth of the synchronization grid frequency point
RSSI as the synchronization grid frequency point.As a result, compared with prior art, it may not need to all sampled points on NR frequency band frequency domain
RSSI is calculated, so as to realize the rapid frequency-sweeping to NR frequency band with lesser operand and amount of storage, it is possible thereby to one
Determine in degree shorten the frequency sweep time according to.
Below with reference to the specific structure of the NR terminal of Fig. 6-7 the present invention will be described in detail embodiment.In the drawings,
Identical appended drawing reference indicates the same or similar meaning, and will omit redundant description
Fig. 6 shows the structural block diagram of NR terminal according to an embodiment of the invention.As shown in fig. 6, NR terminal 60 includes: frequency
Domain conversion module 61, for being transformed into frequency-region signal for signal is received for each working band in working band of newly eating dishes without rice or wine；No
It is overlapped judgment module 62, for judging according to the corresponding global synchronization channel number of grid frequency point synchronous with each working band
Primary synchronization signal or secondary synchronization signal on the synchronization grid frequency point and primary synchronization signal on adjacent sync grid frequency point are auxiliary
Synchronization signal whether there is nonoverlapping bandwidth；Computing module 63, for being judged as presence in the judgment module 62 that is not overlapped
In the case where nonoverlapping bandwidth, connecing at least one resource particle in nonoverlapping bandwidth of the synchronization grid frequency point is calculated
Receiving intensity signal designation value of the strength signal indicated value as the synchronization grid frequency point is received, and is not overlapped judgement mould described
Block 62 is judged as that there is no the synchronization signal/physical broadcast letters in the case where nonoverlapping bandwidth, calculating the synchronization grid frequency point
Receiving intensity signal designation value of the receiving intensity signal designation value of road full bandwidth as the synchronization grid frequency point；And sequence mould
Block 64, for being carried out according to the calculated receiving intensity signal designation value of the computing module institute to the work frequency of newly eating dishes without rice or wine
The sequence of the synchronization grid frequency point of band.
The NR terminal 60 of the present embodiment can be used for executing the NR frequency sweeping method illustrated in any above-described embodiment.It is above-mentioned
The detailed process of NR frequency sweeping method refers to elaborating for above-described embodiment.
The NR terminal provided according to embodiments of the present invention, can be in the resolution and ranking results for not influencing NR frequency point
In the case of, it is not overlapped by only calculating using synchronizing grid frequency point PSS signal or SSS signal between center frequency point and adjacent NR frequency point
RSSI of the RSSI of at least one RE in fractional bandwidth as the synchronization grid frequency point.Thus, it is possible to without to NR frequency band frequency
All sampled points calculate RSSI on domain, so as to being swept to realize to the quick of NR frequency band with lesser operand and amount of storage
Frequently, it is possible thereby to shorten the frequency sweep time to a certain extent.
Fig. 7 shows the structural block diagram of NR terminal according to another embodiment of the present invention.As shown in fig. 7, NR shown in Fig. 7
Terminal 70 and the main distinction of NR terminal 60 shown in fig. 6 are that the judgment module 62 that is not overlapped comprises determining that unit 621,
For determining the son of each working band according to the corresponding global synchronization channel number of grid frequency point synchronous with each working band
Carrier wave interval；And judging unit 622, the subcarrier of each working band for being determined according to the determination unit 621
It is spaced to judge that primary synchronization signal on the synchronization grid frequency point or secondary synchronization signal and the master on adjacent sync grid frequency point are same
It walks signal or secondary synchronization signal whether there is nonoverlapping bandwidth.
Above-mentioned terminal 70 of newly eating dishes without rice or wine is determined in the determination unit 621 in one possible implementation
Subcarrier spacing be 15KHz or 120KHz in the case where, the judging unit 622 is judged as the master on the synchronization grid frequency point
Synchronization signal or secondary synchronization signal on adjacent sync grid frequency point primary synchronization signal or secondary synchronization signal there are nonoverlapping
Bandwidth；It is described to sentence and in the case where the subcarrier spacing that the determination unit 621 is determined is 30KHz or 240KHz
Disconnected unit 622 is judged as on the primary synchronization signal on the synchronization grid frequency point or secondary synchronization signal and adjacent sync grid frequency point
Nonoverlapping bandwidth is not present in primary synchronization signal or secondary synchronization signal.
Above-mentioned terminal 70 of newly eating dishes without rice or wine is sentenced in the judgment module 62 that is not overlapped in one possible implementation
Break as there are in the case where nonoverlapping bandwidth, the computing module 63 is calculated in nonoverlapping bandwidth of the synchronization grid frequency point
Whole resource particles receiving intensity signal designation value of the receiving intensity signal designation value as the synchronization grid frequency point.
For above-mentioned terminal 70 of newly eating dishes without rice or wine, in one possible implementation, belong in the synchronization grid frequency point described
In the case where frequency range 1 in new working band of eating dishes without rice or wine, the quantity of whole resource particles in nonoverlapping bandwidth is
32；It is described not to be overlapped and in the case where the synchronization grid frequency point belongs to frequency range 2 in the working band of newly eating dishes without rice or wine
Bandwidth in whole resource particles quantity be 48, wherein the frequency range 1 is 0~24250MHz and the frequency
Range 2 is 24250~100000MHz.
For above-mentioned terminal 70 of newly eating dishes without rice or wine, in one possible implementation, further includes: normalization module 65 is used for
Used resource particle when by the calculated receiving intensity signal designation value of institute divided by the calculating receiving intensity signal designation value
Number, to be normalized.
The NR terminal 70 of the present embodiment can be used for executing the NR frequency sweeping method illustrated in any above-described embodiment.It is above-mentioned
The detailed process of NR frequency sweeping method refers to elaborating for above-described embodiment.
The NR terminal provided according to embodiments of the present invention, can be in the resolution and ranking results for not influencing NR frequency point
In the case of, it is not overlapped by only calculating using synchronizing grid frequency point PSS signal or SSS signal between center frequency point and adjacent NR frequency point
RSSI of the RSSI of at least one RE in fractional bandwidth as the synchronization grid frequency point.Thus, it is possible to without to NR frequency band frequency
All sampled points calculate RSSI on domain, so as to being swept to realize to the quick of NR frequency band with lesser operand and amount of storage
Frequently, it is possible thereby to shorten the frequency sweep time to a certain extent.
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes are obvious for the those of ordinary skill in art field.The selection of term used herein, purport
In the principle, practical application or technological improvement to the technology in market for best explaining each embodiment, or lead this technology
Other those of ordinary skill in domain can understand each embodiment disclosed herein.
Claims (12)
1. a kind of frequency sweeping method of newly eating dishes without rice or wine characterized by comprising
Frequency-region signal is transformed by signal is received for each working band in working band of newly eating dishes without rice or wine；
The synchronization grid frequency point is judged according to the corresponding global synchronization channel number of grid frequency point synchronous with each working band
On primary synchronization signal or secondary synchronization signal on adjacent sync grid frequency point primary synchronization signal or secondary synchronization signal whether deposit
In nonoverlapping bandwidth；
Be judged as there are in the nonoverlapping bandwidth in the case where nonoverlapping bandwidth, calculating the synchronization grid frequency point at least
Receiving intensity signal designation value of the receiving intensity signal designation value of one resource particle as the synchronization grid frequency point；
In the case where being judged as there is no nonoverlapping bandwidth, synchronization signal/physical broadcast of the synchronization grid frequency point is calculated
Receiving intensity signal designation value of the receiving intensity signal designation value of channel full bandwidth as the synchronization grid frequency point；And
According to calculated receiving intensity signal designation value carry out to the synchronization grid frequency point of working band of newly eating dishes without rice or wine
Sequence.
2. frequency sweeping method according to claim 1 of newly eating dishes without rice or wine, which is characterized in that according to grid synchronous with each working band
The corresponding global synchronization channel number of frequency point judges primary synchronization signal on the synchronization grid frequency point or secondary synchronization signal and phase
Primary synchronization signal or secondary synchronization signal on the synchronous grid frequency point of neighbour whether there is nonoverlapping bandwidth, comprising:
The son of each working band is determined according to the corresponding global synchronization channel number of grid frequency point synchronous with each working band
Carrier wave interval；And
Judged according to the subcarrier spacing for each working band determined primary synchronization signal on the synchronization grid frequency point or
Primary synchronization signal or secondary synchronization signal on secondary synchronization signal and adjacent sync grid frequency point whether there is nonoverlapping bandwidth.
3. frequency sweeping method according to claim 2 of newly eating dishes without rice or wine, which is characterized in that according to each working band determined
Subcarrier spacing judges on primary synchronization signal on the synchronization grid frequency point or secondary synchronization signal and adjacent sync grid frequency point
Primary synchronization signal or secondary synchronization signal whether there is nonoverlapping bandwidth, comprising:
In the case where the subcarrier spacing is 15KHz or 120KHz, it is judged as that the main synchronization on the synchronization grid frequency point is believed
Number or the primary synchronization signal on secondary synchronization signal and adjacent sync grid frequency point or secondary synchronization signal there are nonoverlapping bandwidth；With
And
In the case where the subcarrier spacing is 30KHz or 240KHz, it is judged as that the main synchronization on the synchronization grid frequency point is believed
Number or the primary synchronization signal on secondary synchronization signal and adjacent sync grid frequency point or secondary synchronization signal nonoverlapping bandwidth is not present.
4. frequency sweeping method according to claim 1 of newly eating dishes without rice or wine, which is characterized in that be judged as that there are nonoverlapping bandwidth
In the case of, calculate the receiving intensity signal designation of at least one resource particle in nonoverlapping bandwidth of the synchronization grid frequency point
It is worth the receiving intensity signal designation value as the synchronization grid frequency point, comprising:
Calculate the receiving intensity signal designation value conduct of whole resource particles in nonoverlapping bandwidth of the synchronization grid frequency point
The receiving intensity signal designation value of the synchronization grid frequency point.
5. frequency sweeping method according to claim 4 of newly eating dishes without rice or wine, which is characterized in that belong in the synchronization grid frequency point described new
In the case where the frequency range 1 eated dishes without rice or wine in working band, the quantity of whole resource particles in nonoverlapping bandwidth is 32；
It is described nonoverlapping and in the case where the synchronization grid frequency point belongs to frequency range 2 in the working band of newly eating dishes without rice or wine
The quantity of whole resource particles in bandwidth is 48,
Wherein, the frequency range 1 is 0~24250MHz and the frequency range 2 is 24250~100000MHz.
6. according to any one of claim 1 to 5 newly eat dishes without rice or wine frequency sweeping method, which is characterized in that according to being calculated
Receiving intensity signal designation value come carry out to it is described newly eat dishes without rice or wine working band synchronization grid frequency point sequence before, also wrap
It includes:
Used resource when by the calculated receiving intensity signal designation value of institute divided by the calculating receiving intensity signal designation value
Population, to be normalized.
7. a kind of terminal of newly eating dishes without rice or wine characterized by comprising
Frequency-domain transform module is transformed into frequency domain letter for will receive signal for each working band in working band of newly eating dishes without rice or wine
Number；
Be not overlapped judgment module, for according to the corresponding global synchronization channel number of grid frequency point synchronous with each working band come
Judge the primary synchronization signal on the primary synchronization signal or secondary synchronization signal and adjacent sync grid frequency point on the synchronization grid frequency point
Or secondary synchronization signal whether there is nonoverlapping bandwidth；
Computing module, for being judged as same there are this in the case where nonoverlapping bandwidth, is calculated in the judgment module that is not overlapped
The receiving intensity signal designation value of at least one resource particle in nonoverlapping bandwidth of grid frequency point is walked as the synchronization grid
The receiving intensity signal designation value of lattice frequency point, and it is judged as that there is no nonoverlapping bandwidth in the judgment module that is not overlapped
In the case of, the synchronization signal/Physical Broadcast Channel full bandwidth receiving intensity signal designation value for calculating the synchronization grid frequency point is made
For the receiving intensity signal designation value of the synchronization grid frequency point；And
Sorting module, for being carried out according to the calculated receiving intensity signal designation value of the computing module institute to the new sky
The sequence of the synchronization grid frequency point of mouth working band.
8. according to claim 7 newly eat dishes without rice or wine terminal, which is characterized in that the judgment module that is not overlapped includes:
Determination unit, it is each for being determined according to the corresponding global synchronization channel number of grid frequency point synchronous with each working band
The subcarrier spacing of working band；And
Judging unit, the subcarrier spacing of each working band for being determined according to the determination unit judge the synchronization
Primary synchronization signal or secondary synchronization signal on grid frequency point and the primary synchronization signal or auxiliary synchronous letter on adjacent sync grid frequency point
Number whether there is nonoverlapping bandwidth.
9. terminal according to claim 8 of newly eating dishes without rice or wine, which is characterized in that in the subcarrier that the determination unit is determined
Between be divided into 15KHz or 120KHz in the case where, the judging unit be judged as primary synchronization signal on the synchronization grid frequency point or
There are nonoverlapping bandwidth for primary synchronization signal or secondary synchronization signal on secondary synchronization signal and adjacent sync grid frequency point；And
In the case where the subcarrier spacing that the determination unit is determined is 30KHz or 240KHz, the judging unit is sentenced
Break as the primary synchronization signal or secondary synchronization signal on the synchronization grid frequency point and the primary synchronization signal on adjacent sync grid frequency point
Or nonoverlapping bandwidth is not present in secondary synchronization signal.
10. according to claim 7 newly eat dishes without rice or wine terminal, which is characterized in that it is described be not overlapped judgment module and be judged as deposit
In the case where nonoverlapping bandwidth, the computing module calculates whole moneys in nonoverlapping bandwidth of the synchronization grid frequency point
Receiving intensity signal designation value of the receiving intensity signal designation value of source particle as the synchronization grid frequency point.
11. terminal according to claim 10 of newly eating dishes without rice or wine, which is characterized in that belong to the new sky in the synchronization grid frequency point
In the case where frequency range 1 in mouth working band, the quantity of whole resource particles in nonoverlapping bandwidth is 32；With
And in the case where the synchronization grid frequency point belongs to frequency range 2 in the working band of newly eating dishes without rice or wine, nonoverlapping band
The quantity of whole resource particles in wide is 48,
Wherein, the frequency range 1 is 0~24250MHz and the frequency range 2 is 24250~100000MHz.
12. terminal according to any one of claims 7 to 11 of newly eating dishes without rice or wine, which is characterized in that further include:
Module is normalized, is used for the calculated receiving intensity signal designation value of institute divided by the calculating receiving intensity signal designation value
When used resource grains subnumber, to be normalized.
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